Columbia subject headings:
Firearms--Law and legislation--Russia (Federation)
Harvard subject headings:
Firearms--Law and legislation--Russia (Federation)
Police--Russia (Federation)
Private investigators--Legal status, laws, etc.--Russia (Federation)
Statutes and codes.
Princeton subject headings:
Firearms--Law and legislation--Russia (Federation)
Police--Russia (Federation)
Private investigators--Legal status, laws, etc.--Russia (Federation).