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Criminal Investigation

IKA® Make forensic identification Safer and More EfficientCollected Cases of Injustice Rectified, written in 1247 by aChinese medicolegist, Song Ci, is considered to be the firstmonograph for modern forensics. Song Ci’s primary goal
was the preservation of human life, and the “rectified injustices” referred to in the title alludes to proving the innocence of those who have been incorrectly deemed guilty.
In modern judicial proceedings, the forensic investigators are frequently using medical technologies to analyze
human body, corpse and other substances that might
be related the legal cases. For example, in the cases ofpoison-related deaths, they need to identify whether thedeath was caused by poison, what kind of poison it is,and the quantity of poison content in the body. Hence acomprehensive analysis needs to be carried out and accurate & precise identifications are supposed to be provided to these queries afterwards.

THE CUSTOMER
Important dept. of Public Security Bureau:
Criminal Investigation
Technical Group of Criminal Investigation Department in
one municipal Public Security Bureau of Fujian Province,
analyze and indentify miscellaneous suspicious material
evidences for all criminal cases of the city, mainly focusing

on the inquisition for personal injury/death cases and theidentification of forensic material evidence such as toxics,
bloodstains, hair, and seminal stain, skeleton etc.

THE CHALLENGE
Improve processing efficiency
Forensic investigators examine a diverse set of unusualmaterials, identifying all manners of suspicious materials
gathered from crime scenes. These may include remaining substances left at the scene (vomit, excrement, litter,etc.), bodily fluids (blood, urine, etc.), hair and fingernails,internal organs, and remnants associated with buried decaying corpses (including coffins and soil) etc.
When asked, most forensic investigators expressed thatmodern analytical instruments are already quite technologically advanced, with a high degree of sensitivity,accuracy and detection ability, and 70% of the work performed in the laboratory is actually spent in the pre-treatment of samples. Forensic investigator Mr. Huang said:
we are confronted with two major problems: 1) how to
improve the processing efficiency among variously numerous of samples, and 2) how to reduce the chance ofcross-contamination between samples.

“IKA® resolves a most important problem in forensic
identification field, and we appreciate it a lot.”
Forensic investigator Mr. Huang , Technical Group of Criminal Investigation Department in
one municipal Public Security Bureau of Fujian Province

THE SOLUTION
Disposable Tube, World-first dispersing technology
IKA® provides this customer UTTD control tube disperser,
which resolves these two problems perfectly. For example, in the cases of Acute Organic Phosphorus Poisoning(AOPP), forensic investigators need to collect and analyze
the substances that relative to the hophead such as his/her
leftover, drinks, container of the pesticide, vomits, gastricjuice, blood, urine, liver, kidney, lung etc. Among various
samples, semisolid and solid samples can be collected foranalysis by means of organic solvent extraction; but theliver, kidney and lung need to be homogenized before
being analyzed. The advantages of IKA® UTTD control inthis kind of application can be summarized as below:- IKA® UTTD control (with 50ml dispersing tube), a tube disperser that can be used to process 3-5g of liver, kidney,
and lung tissues, is able to complete the homogenizationof one sample within 1-2 minutes; different samples canbe simultaneously processed separately, which greatly
improves the efficiency of processing compared with traditional manual grinding.
- Viscera samples are high in fibers and connective tissue,
the unique reverse function of IKA® UTTD control canperfectly resolve the problems of fibers and connective
tissue winding along the dispersing elements.
- Turbo key can instantaneously accelerate the speed ofdispersing elements to 8000rpm, thereby greatly enhancing the dispersing efficiency, so as to homogenize thesample in an instant.
- Disposable tubes are used. The samples are separately
processed during grinding, thereby avoiding potential
cross-contamination that might occur on an ordinary
disperser after repeat use. The ground samples can be
stored in the same tubes directly at a temperature of 4°C
for future analysis or reference.

THE BENEFIT TO THE CUSTOMER
Quicker and safer, avoid cross-contamination
The ultimate requirement for processing the forensic toxic
samples is to avoid cross-contamination while samples
processing. IKA® UTTD control can perfectly fulfill this requirement while improving the processing efficiency. OfficerHuang said: “IKA® resolves a most important problem inforensic identification field, and we appreciate it a lot.”

IKA® Works Guangzhou
173-175 Friendship Road, Guangzhou Economic &Technological Development District · 510730 P.R. China
Tel. +86 20 8222 6771 · Fax +86 20 8208 8373
Hotline. +86 400 886 0358 · info@ika.cn · www.ika.com