Deddf yr Heddlu a Thystiolaeth Droseddol 1984 (a.66(1)) : côd ymarfer C: ar gyfer cadw, trin a holi pobl gan swyddogion yr heddlu, a, côd ymarfer H: ar gyfer cadw, trin a holi pobl gan swyddogion yr heddlu o dan adran 41, ac Atolden 8. Deddf Terfysgaeth 2000 /
Great Britain.Home Office.
London : Stationery Office,
2006.
Includes bibliographical references and index.
Great Britain.
Searches and seizures
Arrest
Police questioning
Interviewing in law enforcement