Although not constitutionally required, it has become considerably more commonplace for law enforcement to electronically record a suspect’s custodial interrogation. This includes a complete recording, beginning with the advice of rights and continuing through the end of the interrogation. In fact, society now recognizes it as a useful, if not necessary, tool for law enforcement.
Alan M. Gershel,
A Review Of The Law In Jurisdictions Requiring Electronic Recording Of Custodial Interrogations,
Rich. J.L. & Tech
Available at: http://scholarship.richmond.edu/jolt/vol16/iss3/3