“…Considerable research has centred upon the implementation and efficacy of Code C of the 1984 Police and Criminal Evidence Act (Bean & Nemitz, 1994;Bradley, 2009;Brown, Ellis, & Larcombe, 1992;Bucke & Brown, 1997;Gudjonsson et al, 1993;Irving & McKenzie, 1989;Medford, Gudjonsson, & Pearse, 2003;NAAN, 2015;Palmer & Hart, 1996;Phillips & Brown, 1998). The Codes of Practice document the role and use of an "Appropriate Adult" (AA) to support the welfare and legal rights of the detained mentally disordered/vulnerable detainee (Code C: Home Office, 2014).…”