Mae ‘Canllawiau Cymru ar reoli a throsglwyddo plant a phobl ifanc sydd yng ngofal yr Heddlu a’r Awdurdodau Lleol o dan Ddeddf yr Heddlu a Thystiolaeth Droseddol 1984’  yn nodi rolau a chyfrifoldebau’r heddlu a’r awdurdodau lleol o dan y ddeddfwriaeth, ac mae’n cynnwys protocol model i’w ddefnyddio gan asiantaethau i sicrhau’r arfer gorau ledled Cymru.
The ‘All-Wales guidance for the appropriate management and transfer of children and young people by the Police and Local Authorities under the Police and Criminal Evidence Act 1984’ sets out the roles and responsibilities of the police and local authorities under the legislation, and includes a model protocol for agencies to use to ensure best practice across Wales.