11. A declaration that a person is a vagrant recorded by a Special Magistrate under sub-section (1) of section 7 shall be sufficient authority to any person to retain such vagrant in his custody when such person is under the provisions of this Act or of any rule made thereunder conveying a vagrant from the Court of a Special Magistrate to a receiving centre or, from a receiving centre to a vagrants' home or from one vagrants' home to another and to the officer-in-charge of a receiving centre and to the Manager of a vagrants' home for detaining such vagrant in accordance with the provisions of this Act in a receiving centre or vagrants' home, as the case may be.