TY - BOOK ED - Great Britain. Home Office TI - Intrusive surveillance code of practice SN - 0113411715 (pbk.): PY - 1999/// CY - London PB - Stationary Office KW - CODES OF CONDUCT KW - SURVEILLANCE KW - LAW N2 - Sets out the rules governing use of intrusive surveillance by British Police, Customs and Excise, National Criminal Intelligence Service, and the National Crime Squad ER -