Ym mis Mawrth 2016, tra bod KW wedi ei atal dros dro o'r gwaith yn aros i achos disgyblu ddod i ben, cafodd ei arestio ar amheuaeth o lofruddiaeth ac fe'i collfarnwyd yn ddiweddarach a'i ddedfrydu i'r carchar am oes. Wedi iddo gael ei gollfarnu a'i ddiswyddo, cytunodd y bwrdd fod angen adolygu effeithiolrwydd y prosesau a oedd ynghlwm wrth ei gyflogaeth a'r ffordd y cafodd honiadau a wnaed yn ei erbyn eu rheoli. Roedd hwn yn cynnwys penderfynu a fu unrhyw achos o wrthdaro buddiannau yn ystod yr amser hwn am mai tad KW oedd cyfarwyddwr y gwasanaeth anableddau dysgu ar y pryd.
In March 2016, whilst suspended from work pending the conclusion of disciplinary proceedings, KW was arrested on suspicion of murder and later convicted and sentenced to life imprisonment. Following his conviction and dismissal the health board agreed the need to review the effectiveness of the processes surrounding his employment and the management of the allegations made against him. This included determining whether there had been any conflicts of interest throughout this time as the father of KW was the director of the learning disability service at the time.