23. No institution operating a hospital centre may keep a person under close treatment for more than twenty-one days after his admission without a new psychiatric clinical examination confirming the necessity to prolong such close treatment.
Such examination must be made again three months after the first and, subsequently, at least every six months, in default of which the close treatment of such person must end.
1972, c. 44, s. 23; 1992, c. 21, s. 271.