The Mental Health Act 1983 is the law in Wales and England that allows for the admission of people to hospital, with or without their consent, for the assessment and treatment of a mental disorder.
Mae'r Ddeddf Galluedd Meddyliol yn darparu fframwaith cyfreithiol yng Nghymru a Lloegr ar gyfer gwneud penderfyniadau ar ran pobl 16 oed neu hŷn, na allant wneud penderfyniadau drostynt eu hunain.