SUMMARY The key words in this final master degree work “Connection, Purpose and Place of Punishment Enforcement and Criminal Law” are the branch of punishment enforcement law, the branch of criminal law, legal system, punishment, connection of punishment enforcement law and criminal law in legal system. Punishment enforcement law and criminal law make some kind of the aggregate in legal system which regulates all questions connected with investigation of criminal act and realization of the imposed punishment. It is noted that the branch of punishment enforcement law and the branch of criminal law are independent branches of the law in the legal system. They are different by their indications, subject and specific principles but they can’t function isolated from each other and are close related. The branches of punishment enforcement law and criminal law form common state’s legal basis of crime control.