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 Deddf 2013 yn galluogi swyddogion gorfodi i archwilio a chadw bathodyn heb i'r heddlu fod yn bresennol os oes ganddynt sail resymol dros gredu bod y bathodyn: