often, the research of ecc employees is included in the materials of criminal cases of mass poisoningcent years there have been there are several such cases in the irkutsk region, yekaterinburg, tyumen, ulyanovsk and even in the moscow region. this department of examinations using chemical methods is one of the oldest in the structure of the ecc, the ministry of internal affairs of russia. in addition to drugs and alcohol, dozens of other substances are studied here. petroleum products and fuels and lubricants, varnishes, paints, polymers and rubber. that is, for each of these areas we receive materials for research. and we conduct forensic examinations. categories of criminal cases may be different, for example, in the direction of the contamination materials - this is intentional damage to property, causing death, etc. terrorist acts and crimes of an extremist nature. sometimes an investigator orders several examinations at once in a criminal case. vkts are always ready to conduct any, including the most technologically advanced research, from fingerprint comparison to the most comp