The Welsh Government, Youth Justice Board, Health Services and Forensic Adolescent Children Service (FACS) contributed to the development of Enhanced Case Management (ECM).
Datblygwyd ECM ar y cyd gan Fwrdd Cyfiawnder Ieuenctid Cymru, Llywodraeth Cymru, y Timau Troseddau Ieuenctid (YOTs) a Gwasanaeth Triniaeth ac Ymgynghori Fforensig y Glasoed Cymru Gyfan.