High Quality Content by WIKIPEDIA articles! The Code of Criminal Procedure is the main legislation on procedure for administration of substantive criminal law in India. It was enacted in 1973 and came into force on 1 April, 1974. It provides the machinery for the investigation of crime, apprehension of suspected criminals, collection of evidence, determination of guilt or innocence of the accused person and the determination of punishment of the guilty. Additionally, it also deals with public nuisance, prevention of offenses and maintenance of wife, child and parents.