1)Criminal is the keystone of the police service.
2) A highly professional policeman should possess such attributes of the policeman’s profession as dedication, courage, specialized investigative aptitudes and a professional instinct, i.e. some sleuthing .
3) Quick and accurate solution of crimes depends on the skills in – conducting surveillance, penetrating the underworld, work with the informants.
4) is a person who gives the police officer confidential information about a crime.
5) A police officer operating in plain clothes often comes to know personally of the specific criminal specialty.
6) When the investigating officer works at the he defines the crime quickly.
7) The investigator examines all to establish evidence of guilt against a person re-sponsible for a crime.
8) A very much more important and difficult thing is prevention.