Eligibility - Is the person already liable to detention under the Mental Health Act 1983, or would they meet the requirements for detention under this Act?
Cymhwysedd - A yw'r person eisoes yn agored i gael ei gadw o dan Ddeddf Iechyd Meddwl 1983, neu a fyddai'n bodloni'r gofynion i gael ei gadw o dan y Ddeddf hon?