Friday, March 20, 2009

Pctv 150e Media Center Drivers




FORENSIC EXPERT ENGINEER


Other expert conducted training at the School of Criminology of the National Police Peru

  1. PERITO CRIMINALISTICA Year 2002
  2. CURRENCY GOVERNMENT EXPERT AND VALUES 2003

  3. PERITO Handwriting Year 2005
FORENSIC ENGINEERING


is the application of the knowledge of the properties of matter in the art police investigation of crimes in support the administration of justice.

Surveying Services and Forensic Engineering Technical Report :


  • tests textile and apparel . fibers are analyzed to determine its composition, major fraud cases. In clothing signs of violence are considered as cracks or cuts or presence of substances or bodies of evidence Exchange product contacts, such as traffic accidents.




  • Tests on surface recordings metal surfaces and / or recovery .- Determination of adulteration serial numbers engraved on metal surfaces such as engines and chassis of vehicles and plates. Common in cases of theft of vehicles. Usually criminals use parts of these and eradicate some or all of the recordings or otherwise make changes to the characters.







  • Fire Research
    .- To determine where beginning and origin of the fire spreading and its causes. As practiced by any casualty is related to state security. Fires can be caused, intentionally or could be due to negligence or could be due to purely accidental situations. Insurance companies avoid being affected by the claims of their clients, which require the expertise of the fire investigation.

  • Testing of paints .- Analysis and comparative study of paintings to determine its nature and composition and physical properties such as compliance with technical specifications, strength, stretching, strength, adhesion, etc.. Important cases to ensure the procurement and tendering contracts and vehicles especially related to traffic accidents.

  • spectrophotometry analysis by atomic absorption mica .- Determination of metal cations of lead, antimony, barium, mercury, arsenic, chromium, etc. For determination of Trigger Blow Gun, water pollution, soil, air, and composition analysis of minerals and metallurgical products.




  • Review machinery, equipment, mechanical parts, appliances, etc ., Which have caused accidents or domestic or were sabotaged. as boilers, autoclaves, ovens, gas tanks, which caused an explosion or fire.

  • Review of locks, padlocks, safes, door security , I electronic security systems to verify its functionality or signs of violence, useful in the investigation of Robbery.









  • Industrial Products: as carbonated beverages and aloholicas, pipes, paints, etc.
    . Research old, eradication and deed changes.
    . Factory inspections and sample analysis related to environmental pollution.
    . Inspection of crime scenes.
  • Fuels and lubricants. Review fuels and lubricating oils.
    .
  • Identification by voice
  • Use of chemicals in the Detection of Crime: id Forensic voices on tape and video.
    . Revealed fingerprint impressions or by chemical methods. Analysis
  • jewelry for quality and / or authenticity.
    . Discussed in measuring instruments.
    .
  • physical-chemical analysis of coins and banknotes, securities and documents: ink are examined, the substrate (paper) and impressions. Tests
  • packaging, containers .- violations are common correlation container or containers. The physicochemical analysis of the safety devices are important. Additionally there are many cases in which prints suffer eradications packaging or tampering.



FIRE INVESTIGATION REMAINS OF GUNSHOT .

remains Firing guns are made basic cally by the combustion products of the burden of screening and explosive. The load forecast is a mix of some of the following products: Nitroglycerin, Nitrocellulose, diphenylamine, and graphite unit which are to combust a mixture of carbon monoxide gas, carbon dioxide, oxygen, nitrogen and water vapor dissipating in the air. Also

how the explosive is shaped by antimony trisulfide, trinitroresorcinato lead, barium nitrate, lead dioxide and tetraceno, whose combustion products mentioned gas mixture and also scrap metal lead, antimony and barium.

In both cases because the combustion is not possible total residues of the initial compounds.

A. REMAINS OF FIRE IN SAMPLES OF PEOPLE

Research is focused on the determination of metal traces lead, antimony and barium.

Samples were taken from the suspect's hands using cotton swabs impregnated with 5% nitric acid after solution treatment, concentration and filtration, the sample is analyzed by atomic absorption spectrometry or by plasma-induced, expressing the results in parts per million (ppm) of lead, antimony and barium.

The alternative method of analysis by atomic absorption spectrometry is the analysis by scanning electron microscope, for this procedure, the sample is taken with tape or by suitable chemical solvent, is then subjected to ultrasound treatment and filtration empty.

Electron microscopy scanning, allowing observation of samples with a three dimensional image of the topography of its surface, making the identification of particles in both its form and size. The detector X-ray analyzer is responsible for comparing the emission of these rays with patterns found in the database established computer terminal differentiation of particles and particles indicative only and failed to find the percentage composition of components the particle.











0 comments:

Post a Comment