RESEARCH SPECIFICS OF SEPARATE TYPES OF CYLINDER LOCKS PICKED BY SELF IMPRESSIONING MASTER KEYS
Criminalistic research on locks takes an important place in prevention, qualification, disclosure and investigation of property crimes related to house penetration, so-called burglaries. The analysis of modern expert practice has established a tendency to increase the unauthorized (criminal) picking of cylinder pin locks with a horizontally oriented keyhole that has become widespread in last years. Its contributes a large number of manufactured devices (manufactured in China mainly) for picking indicated locks, namely master keys operating on the principle of self impressioning and can be purchased through the Internet, as well as a larger number video materials regarding their use. In the available criminalistic literature only singles, at some extent current and actual ways of unauthorized picking of cylinder pin locks using of outside objects with developed recommendations according research on such as manipulation method by means of a selected forged key and bumping are covered. Method of self impressioning that is the basis of picking modern locks mastered and successfully used by "qualified" burglars majority, in modern criminalistics is not mentioned at all. Therefore the purpose of this article is to highlight criminalistic research possibilities of certain types of cylinder pin locks, picked by means of an manufactured self impressioning master key. The article pays attention to such problem aspects: method of self impressioning using in the way of picking a lock with a cylinder mechanism; design features of self impressioning master key to cylinder locks, concerning to the solution of diagnostic and identification issues; traces classification of self impressioning master key remaining on lock details; difficulties research on cylinder locks that were subjected to action of a self impressioning master key.
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