Section 19(2)(b) in The Gujarat Prevention of Anti-Social Activities Act, 1985
(b)every person in respect of whom an order of detention has been made under section 3 of the said Ordinance by reason of his being a dangerous person and is in force immediately before the date on which the assent to this Act of the President is first published in the Official Gazette, (hereinafter referred to as "the said date"), shall, notwithstanding that his detention has been rendered inconsistent with section 3 of this Act, continue to be under detention subject to the provisions of this Act;