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ISRAEL POLICE
NATIONAL HEADQUARTERS
INVESTIGATIONS DEPARTMENT
DIVISION OF IDENTIFICATION
AND FORENSIC SCIENCE
SHEIKH JARRAH
JERUSALEM 91906
ISRAEL

TEL: 972-2-5309410
FAX: 972-2-5308688
e-mail: forensics@police.gov.il


DIFS Annual Report 2000
The year 2000 saw the first year of the structural re-organisation of the DIFS which now comprises two branches, those of the laboratories and field units. Along with all the Israel Police, the DIFS experienced severe resource difficulties, resulting in cutbacks in manpower and budget. Bearing this in mind, supreme efforts were made in maintaining the essential infrastructure in order to keep everything running smoothly and to answer the needs of the Israel Police in the third millennium. Following, are some of the main activities of the division during the year:


Preparation of groundwork in establishing a DNA database and passing its legislation in the Knesset.

Advances in the planning of a new DIFS complex for which the final decision for its construction will be made in 2001.

Decentralization of some of the DIFS services from the Jerusalem HQ: Analytical drug laboratory in the Southern Police District
Establishment of a fifth polygraph laboratory in the Central Police District to start operating in 2001.
Examining the possibility of establishing a further drug lab to serve the Tel Aviv and Central Police Districts.

Upgrading equipment with new technologies:
Improvement of the capability of the AFIS and installing a palmprint comparison database.

Purchase and installation of an automated DNA profiling system (ABI-310).

Explosives detection and analysis equipment - GC-TEA; LC-MS; Barringer sniffer.

Installation of new analytical instrumentation for drugs and poisons - GC-MS.

FTIR with a microprobe for the examination of fibres and polymers.

Upgrading the XRF and micro-XRD in the Toolmarks and Materials lab.

The DIFS invested great efforts in improving the professional capabilities of the field units: A training class was opened in Bet Dagan and a comprehensive training program introduced for instruction and refresher courses for most field technicians.
Thirteen new and fully-equipped vehicles were added to the existing fleet; personal safety kits were supplied; improvements were made to equipment for development of latent fingerprints and forensic photography.
Teams were established to look closely into manpower needs of the field units and pay bonuses for the technicians.
A new position for a DIFS psychologist was allotted.

The excellent ties between the DIFS and other forensic science services over the world were continued. DIFS experts participated in 20 scientific conferences, conducted training courses and attended international discussion meetings. Several foreign delegations visited us here at the DIFS, the most important one being from China.

The Israel Police Commissioner has determined that the goal of the year 2001 is to improve standards of professionalism and service in the force. In this vein, we, in the DIFS, have taken upon ourselves three main goals for the coming year:

Improving the service we provide to the police investigation units; increasing the annual casework load handled by 10%; establishing caseload priority guidelines in coordination with the field units.

Improving the professional standard of the field technicians.

Advancing the topics of quality assurance and safety in the division.


Dr.Elazar (Azi) Zadok, Brig. Gen.,
Director, D.I.F.S.


List of Laboratories

Forensic Biology Laboratory



Division of Identification and Forensic Science

Israel Police - National Headquarters

Derech Haim Bar-Lev

Jerusalem, 91906

Telephone: 02-5309436

Fax: 02-5309674

e-mail: biologit@netvision.net.il

Laboratory Director: Superintendent Dr. Rony Gafny

General

The Forensic Biology laboratory employs its expertise on items of evidence contaminated by a variety of biological materials. The bulk of material tested in the lab results from blood and semen stains, but saliva, hair samples and botanical specimens are also analyzed.

The laboratory first identifies the source of material found on items of evidence to be tested. If the source is of human origin, an analysis is then performed to determine a genetic profile. This profile helps define the sample's unique characteristics, enabling a further comparison to be carried out with reference samples from the involved parties.

The 2000 Annual Report reflects the routine activities carried out in the laboratory, in addition to topics of research and development. The report is divided into chapters which summarize the day-to-day procedures upon receiving material from the field of investigations, the assistance given to detectives and the prosecution, and other varied activities pertaining to work in the lab.

During this year, the laboratory underwent major renovations. The outcome justified the hardship of carrying out work under such difficult conditions. In addition to a physical renovation, we incorporated new, up-to-date methods of analysis. These new tests increase the weight of evidentiary proof provided to the detectives and prosecutors handling the cases.

Statistics Regarding Cases

General Statistics:

585 cases were received during the year 2000.

An average of 49 cases were received per month.

Diagram 1 represents the number of cases received in the laboratory over the last four years. Commencing from the middle of 1999, cases containing Cannabis seeds were no longer routinely analyzed. This resulted in a loss of 1/5 to 1/4 of the number of cases registered to our laboratory.


Diagram 1 - Cases registered in the Biology Lab for the period 1997-2000.



Table 1 describes the distribution of cases according to the type of crime committed (defined by the detective's accompanying letter). It is important to note that the relative percentage of cases registered in the lab, regarding a specific type of crime, does not necessarily reflect the percentage of these crimes registered in the Israeli Police. The table reflects only those cases where items of evidence were received by the lab. As seen in the table, sexual assault cases constitute the bulk of cases.


Table 1 - Distribution of cases according to type of Crime.

Crime No. of cases %
Murder and attempted murder 15 2.6
Sexual crimes 297 50.8
Assault and Battery Crimes 164 28.0
Property Crimes 73 12.5
Drug Crimes 32 5.5
Attacks on Live stock 1 0.2
Proficiency testing 3 0.5
Total 585 100.1





Table 2 shows the distribution of required examinations as defined by the detective's accompanying letters. As seen from the table, requests for blood and semen examinations comprise 85% of the total. Of the two examinations, semen analysis was required more than blood analysis. The number of yearly examinations requested exceeds the number of cases registered in the lab, because each case may require more than one type of examination.


Table 2 - Distribution of Required Examinations.

Required examination No. of exam. Percentage
Blood 212 35.9
Semen 288 48.8
Saliva 56 9.5
Hair 2 0.3
Plants 31 5.3
DNA 1 0.2
Total 590 100.0


Notable Cases


A notable case is one that has significance from a scientific, public or law enforcement point of view. In as much as the majority of cases received in the lab fit this description, only a few examples will be given.




DIFS file #/11 1374/00, Rishon Le'Zion. A woman was sexually assaulted by two suspects. One suspect admitted his guilt and the other denied all complicity. Swabs from the victim's genitals provided a genetic profile that matched that of the second suspect. This contribution was able to definitively link the suspect who had denied all involvement to the crime.

DIFS file#/11 11844/00, Rosh Pinna. In an attempted sexual assault, a genetic profile was obtained from the victim's clothing. This profile provided a link to an additional case from the same police station from the year 1999, in which a complaint was received for public masturbation. This connection linked two cases where no suspects were known. This example also illustrates that some offenders of minor sexual misconduct, may turn to worst degrees of sexual crimes, if not apprehended.

DIFS file#/11 21940/00, Lod. A suspect was detained in a rape case whose genetic profile did not match the profile defined from the items of evidence in this particular case. The obtained profile was linked though, to two other cases from different stations in 1999, where no suspects had been located in those cases. The contribution in this case was two fold. Not only was a suspect cleared from involvement in one case, but two previously unsolved cases were linked to this one and a potential serial rapist was brought to the attention of the investigators.


Publications

Zamir, A., Glattstein, B. and Springer, E., (2000) Fingerprints and DNA: STR typing of DNA extracted from Adhesive Tape after Processing for Fingerprints. Journal of Forensic Sciences, Vol. 45 (3): 687-688.


Zamir, A., Oz, C., Novoselsky, Y. and Klein, A. (2000) A Hit and Run Accident Solved by a Compilation of Evidence. Journal of Forensic Sciences, 50(4): 351-356.


Oz, C., Zamir, A., (2000) An evaluation of the relevance of routine DNA typing of fingernail clippings for forensic casework. Journal of Forensic Sciences, 45(1): 158-160.


Zamir, A., Oz, C. and Geller, B. (2000) Threat mail and forensic science: DNA profiling from items of evidence after treatment with DFO. Journal of Forensic Sciences, 45(2): 445-446.


Oz, C. and Zamir, A. (2000) QIAamp spin columns as method of DNA isolation in the Forensic Biology Laboratory. An Internal Report. Division of Identification and Forensic Science.


Shoshani, E., Oz, C., Gibritch, P., and Argemon, U. (2000) An Examination of Items received from the Palestinian Authority. An Internal Report. Division of Identification and Forensic Science.


Electronics & Computer Laboratory

Address

Division of Identification and Forensic Science

Investigation Department/ Israel Police Headquarters

Haim Bar-Lev Road

Jerusalem 91906

Israel

Tel: 972 - 2 - 5309460

Fax: 972 - 2 - 5898773

Email: mzpele@netvision.net.il

Head of laboratory: Arie Aperman, Chief Superintendent

Aims of the laboratory:

To develop, provide and maintain computerized tools for various labs in D.I.F.S.

Maintenance of scientific equipment and assistance in the investigation unit with technical aid such as acquisition of video pictures for digital enhancement.



The D.I.F.S. that was previously based on a central mini-computer attached with dumb terminals, is in stages of replacement by a new network working in the windows environment. Applications for the variety of labs are being rewritten with an application generator called MAGIC.



Several projects for exchanging data (mug shots, fingerprints...) between field units and D.I.F.S. are implemented taking advantage of the new intra-police network.


Questioned Documents Laboratory

Israel Police

Division of Identification and Forensic Science

Questioned Documents Lab.

Telephone 972-2-530-8613

Fax 972-2-530-9676

Email: qde@netvision.net.il


Aya Schohat, Chief Superintendent,
Head, Questioned Document Laboratory.




Introduction

Description of the lab - fields of expertise

The questioned documents laboratory is responsible for the examination of all documents - those suspected of being forged and others. The lab covers several fields:
Handwriting examination - The comparison of handwriting where the author is not known, to handwriting exemplars of known authors, in order to verify identification or non- identification between them. Typical documents that are examined include cheques, credit card vouchers, bonds, letters of credit, certain banking documents, agreements, contracts, receipts, wills, threatening letters, photographs of graffiti etc.
Technical Examinations - identity cards, passports, diplomas, birth certificates, driving licenses, and other examinations for determining full forgeries or erasures and alterations; ink examinations - optically and chemically; printing methods; typewriters; computer printers; photocopiers; rubber stamps etc.
Examination of currency (banknotes) - that are suspected of being forged.
Tuition and professional counseling regarding the areas covered by the lab.
In most cases the aim is to attain an expert statement, which becomes part of the prosecution's evidence in court. In some cases, the lab's experts are called to testify in court, and in cases where there is a defense witness, the lab's experts advise the prosecution as to how to question this witness during cross examination.
Personnel - the questioned documents lab has 15 workers, most of whom are experts in the examination of documents who were trained while working in the lab, while others are still students. Two workers deal with the examination of banknotes.
Services - As the laboratory is the only one of its kind nationwide, it gives services to various bodies: The Israel Police - investigation departments, district attorneys, courts of law - and in special cases to the Israel Defense Forces and the Security Departments, Government Offices, other external bodies in specific cases and to private bodies in unusual cases. Sometimes a fee is taken for these examinations.

Statistics - Casework

A summary of statistics regarding cases examined by the lab for the year 2000 is given below, with a comparison to the total number of cases examined in the years 1997-1999

Subject 02 03 05 06 Total 2000 Total 1999 Total 1998 Total 1997
Opened 1,116 4 270 1,965 3,355 4,491 4,355 2,439


The numbers represent the files opened by the lab.

The Questioned Documents Lab has the highest number of cases in the DIFS - apart from the analytical chemistry lab/drugs.

In the general number of files opened this year there is a decline of approximately 25% compared to 1999.

Handwriting comparison cases (02) and technical examination cases (05) have basically remained unchanged for the year 2000 compared to 1999.

The number of cases involving the examination of currency (06) opened this year are 33% less than in 1999, and this reduction should be taken into account with the overall reduction in files opened for examination by the lab this year. However, the reduction in the number of cases does not mean that there are less articles to examine in these cases. This year we have started a biannual arrangement of cases according to the senders' reference number and the lab's reference number. For these cases (where there is no suspect), all the banknotes intercepted in the various police units which are not given their own individual reference case number and DIFS case number, are stored for half a year and then examined as one concentrated case every six months. The amount of banknotes in each of these twice-yearly files that are concentrated into one DIFS reference number is very high (although we do not have actual numbers to report). Furthermore, in one DIFS file we examined six suitcases worth of banknotes from Bank Hapoalim, amounting to approximately 1.8 million shekels (see below).


Research and Development

A new research project dealing with the comparison of handwriting characteristics between different languages was initiated. A preliminary experiment was performed, where the handwriting of five immigrants from Russia writing three languages, and five Arabs writing three languages was examined. A preliminary assessment of the results seems both interesting and promising.

An application of the MAGIC software was developed together with the electronics lab, for the computerization of cases concerning banknotes. With entering information from casework into the database, it will be possible to extract information more efficiently for the investigation and intelligence departments.


Professional Advice

The lab has drawn attention to the fact that the Israel Police does not have a central unit for the investigation of cases of banknote forgery. As a result, a team has been formed to examine the methods of treatment of cases of forged Israeli and foreign banknotes with the participation of representatives from the intelligence department, the investigations division and the lab. The team presented their recommendations to the Head of the Investigations Department, which were then relayed to the Bank of Israel.

Participation of lab experts in many meetings with the relevant authorities, dealing with the quality of Israeli documentation, such as passports and entrance visas. Recommendations for improvements were given.

Participation in many meetings with the Head of the Population Administration of the Ministry of the Interior on the subject of new identity cards, and on the subject of documentation for foreign workers.

Examination of a draft of a government working paper for realization of a `smart card' based national document, with suggestions from the lab on how to secure this document against possible forgery.


Advise to the Ministry of the Interior and to the Airport Authority.

A visit by a representative of the Secret Service in the matter of forged dollars intercepted in Israel.

Special Cases

In the Fraud Division's investigation of the State's President, a document was examined for the comparison of handwriting between that on the document and between samplers of the Director of the President's office.

In the matter of forged documents of the Greek Patriarchy amounting to a sum owed to the State of approximately $20 million, various documents were examined by the lab, including the Patriarch's seal, and signatures purportedly belonging to the Patriarch that were found to be forged. The investigation is yet to be concluded by the National Fraud Investigation Unit.

A case investigated by the Tel Aviv Central Unit was examined at the lab involving forged identity cards, car licenses, driving license request forms etc. A large number of documents, typewriters, typewriter ribbons and handwriting samples were examined.

Following the discovery of a clandestine printing shop in Jerusalem, 350,000 forged dollars were received for examination along with identity cards and plaques used for printing.

In the framework of an exercise by Bank Hapoalim to clear the basement of their main branch in Tel Aviv of forged banknotes that had as yet not been examined formally for the past two years, the lab received six suitcases of banknotes for examination. To date, three suitcases have been examined with a total value of 1.8 million shekels.

During the year, about fifty cases of forged cheques involving high sums were received for examination. The suspects stole the cheques, forged signatures and stamps and deposited the cheques in bank accounts. The method of operation was the same in all these cases. We raised the problem to senior investigators from the south of the country where most of the cheques were intercepted, and gave them details about possible suspects from investigative work done by the lab. Although a special investigative team was formed, it seems to have dissipated without carrying out a proper investigation or reaching any results. This is a shame as the perpetrators continue merrily on their way.

The charred remains of a document were received for verification if they were indeed the remains of an original letter written by Rabbi Nachman of Breslav. This letter contained the famous saying that is supposed to bring good fortune and blessing to one who repeats it. No writing was found on the charred remains and we are still trying to verify information about the paper to see if it matches the burnt fragments.

As a prologue to the last elections, a booklet was received for examination with the signatures of those supporting Benny Begin for Prime Minister. An initial examination found that all the signatures were forged. Indictment letters were presented and one still questionable booklet remained to be examined by the lab.

Several cases were examined where the documents had been forged by modern methods - i.e. photomontage of stamps and/or signatures by ink jet printers, making them appear authentic. This type of forgery is expected to increase in the future.

An initial examination was carried out on documents containing Arabic handwriting by request of the Federal Prosecutor of Tampa Florida and a representative of the Secret Service. These documents are part of a trial of Hamas activists in the United States.

Toolmarks and Materials Laboratory

Address

Division of Identification and Forensic Science

Investigation Department/ Israel Police Headquarters

Haim Bar-Lev Road

Jerusalem 91906

Israel

Phone numbers:
972-2-5309453 (Head),
972-2-5309452,5309353,5309359,5309287.

Fax number: 972-2-5308688.

E-mail: simanim@netvision.net.il

Head: Chief Superintendent Nadav Levin



The Toolmarks and Materials Laboratory deals with a wide variety of topics, ranging from the comparison of contact marks, such as tool marks and shoeprints, to the comparison and identification of trace evidence, such as gunshot residue (GSR) particles, glass fragments, paint chips and metal shavings. In addition to these, the Laboratory also conducts examinations for shooting distance estimations, obliterated serial numbers restorations and examinations of stolen and forged vehicles.

The Laboratory uses sophisticated analytical equipment, such as scanning electron microscopes, combined with energy dispersive X-ray spectroscopy systems (SEM/EDX), X-ray powder diffraction system (XRD) and a micro beam X-ray fluorescence instrument (micro-XRF). The Laboratory also employs a comparison microscope, mainly for tool marks examination, a microspectrophotometer, for the analysis of paint chips and invisible detection powders, and the GRIM2 system for glass refractive index measurements of tiny glass fragments. In addition, the Laboratory utilizes chemical methods for the enhancement and visualization of latent and faint marks and particles, such as the Bromophenol Blue (BPB) reagent used for shoeprints and the reagents used for shooting distance estimations.

The Laboratory runs a nation-wide collection of broken cylinder locks, collected at scenes of crime, and grasping tools, found in the possession of suspects. A collection of scene-of-crime shoeprints is also maintained at the Laboratory under the SICAR system. These shoeprints are compared to suspects' shoes submitted routinely to the Laboratory for examination.

The annual caseload of the Laboratory has increased by about 7% a year in the last four years, exceeding 890 files in 2000. The main examination topics of the Laboratory, according to file numbers, are gunshot residue analyses (about 100 cases a year), shoeprints examinations (more than 250 cases), shooting distance estimations (about 110 cases) and tool marks examinations (about 75 cases annually). More than 50 cases of forged coins (mainly of 10 NIS coins), having a nominal value higher than 100,000 NIS, were also examined in 2000.

The Laboratory staff counts nine experts in a variety of scientific disciplines. Apart from casework, the Laboratory staff is also involved in research and development projects. About ten articles were published by the Laboratory staff in various scientific leading journals last year.


Gambling Machines Laboratory

Address

Division of Identification and Forensic Science

Investigation Department/ Israel Police Headquarters

Haim Bar-Lev Road

Jerusalem 91906

Israel



A laboratory for testing gaming equipment was founded in the D.I.F.S. in 1998. The Laboratory is responsible for identifying gambling equipment and supplying expert testimonies to court considering felonies against illegal gaming law.

An illegal game is defined by the law as "a game in which a person can win money or the worth of money or any goods by the game result, and the result is based more on chance then on intellectual or manual skills." Law forbids organizing or participating in such games.

In order to prove that a certain gaming device is gambling machine 3 constituents must be present in it

There must be in the machine a betting mechanism, which will allow the raising of various sums of money as depending on the outcome of the game.

The machine must operate a random process, which establishes the game result.

There must be promised prizes for the winners.

The laboratory examines the machines in order to identify these constituents.

The testing is done in police warehouses after the machines are seized, or the laboratory staff joins the police force to the seizure operation. The latter way of action is more recommended as the police force can consult the laboratory on a machine before seizing it.

In the year of 2000, 142 files were opened considering 925 gaming machines.

Voice Identification Laboratory

Address

Division of Identification and Forensic Science

Investigation Department/ Israel Police Headquarters

Haim Bar-Lev Road

Jerusalem 91906

Israel

Tel: 02-5309459

Fax: 02-5308688

e-mail: voicelab@vms.huji.ac.il

Lab head: Chief Inspector Sharona Cohen



General

The voice identification lab deals mainly in three topics:


Identification and comparison of speakers: the method is based on two levels, audio assessment and by the voice spectrogram.

In order to achieve a comparison, a number of conditions are needed:
The recorded tape.
Specimen of suspect's voice reciting the same text, recorded by the same means (as far as possible) and by the same channel of communication.
Transcript of the recording.

Authenticity verification of tapes - most casework in the past two years is authenticity.

Clarifying disputed words or sentences - sometimes the lab is asked to clarify a word or sentence whose meaning is under question by the prosecution or defense.



1997 1998 1999 2000
No. of cases opened 37 32 30 23
No. of cases closed 20 17 26 7
Cases still open 78 88 99 114

Cases of note

ZB/19- 21639/99, International Crime Unit the "Nimrodi" file

Comprises 16 tapes under one file number and their authenticity examination, with the help of the Intelligence/Technology unit lasted almost the entire year. The file resulted in 16 expert opinions and the tapes were sent on to the RCMP, Canada for further evaluation. The experts there also wrote expert opinions. The findings of both labs coincided and resulted in a clear picture regarding the nature of the recorded tapes.


.
.

Research and Development

From the beginning of the year 2000, the lab embarked on a new project of automated speaker identification, collecting basic material on this topic and learning "MATLAB", compiling a database and trying out and establishing a sophisticated system for this purpose.

An internal report was written on the techniques employed in the experiments and their results. Cooperation with an outside expert was also established. Our findings are similar to those found elsewhere in the world in this field and, at present, the system can give a quite accurate level of comparison between the voice of a suspect against one in the lab database - that it to say, if a match has been found or not.


Mass Spectrometry and Explosive Analysis Laboratory

Address

Mass Spectrometry and Explosive Analysis Laboratory

Division of Identification and Forensic Science

Investigation Department/ Israel Police Headquarters

Haim Bar-Lev Road

Jerusalem 91906

Israel

Tel: 972-2-5309545, 972-2-5309434

Fax: 972-2-5309360

Email: analitit@netvision.net.il

Head of laboratory: Chief Superintendent Tsippy Tamiri

General

The mass spectrometry and explosive analysis laboratory performs explosive analysis in various methods and, in addition, identification of organic materials using mass spectrometry (MS) in various introduction and ionization methods.

An exhibit may be material suspected to be or contain explosive and also debris from scene of explosion. Exhibits are usually submitted to the laboratory by bomb disposal team from explosion cases, hand-swabs from suspects, materials from police investigation, border-crossings, customs and others.

Materials may be standard explosives or mixtures of improvised explosives, organic and inorganic compounds. In post-explosion debris we look for unexploded material which is usually present in small amounts mixed with large amounts of irrelevant materials such as oily compounds and plasticizers.

Mass spectrometry is used for the identification of organic compounds connected with police action. Exhibits submitted from the relevant laboratory: dangerous drugs, poisons, explosives, fire accelerants and unknown compounds. Inorganic anions related to explosives and poisons may be identified after suitable derivatization.

Lab procedures and activities

Explosive Analysis unit

Procedure for the analysis:

Material is screened using spot tests and thin layer chromatography (TLC). Confirmation is performed by infra-red (IR), MS, GCTEA (chemiluminescence specific detector). Post explosion analysis is much more complicated because it is an "unknown" analysis. Very volatile explosives such as triacetone triperoxide (TATP) may be found in vapor phase of debris. Therefore, gas phase over the debris is analyzed first directly or by adsorption on Amberlite XAD-7 resin or by solid phase microextraction (SPME) using PDMS/DVB fiber. Non-destructive methods such as microscopy should then be applied.

Organic extraction using acetone is performed for the extraction of organic explosives, mainly military explosives and then aqueous extraction for the extraction of water-soluble explosives, mainly improvised and industrial materials.

The acetone extract is screened by TLC. Confirmation is performed by GCTEA and or MS. Water extract is screened by spot tests, IR. Confirmation is performed by GCMS after suitable derivatization into organic volatile compound.

We also advise to the bomb disposal division in chemical and analytical questions.

MS unit

Three instruments are operated in the laboratory:

Finnigan TSQ 700 ( from 1993) - Triple quadrupole GC/direct inlet, EI/CI, positive/negative ionizations modes.

HP 6890 (from 2000) quadrupole, GC, EI/CI,