Sch 2A para 2
(1) A constable may require a person to attend a police station for the purpose of taking his fingerprints under section 61(5B). (2) The power under sub-paragraph (1) above may not be exercised after the end of the period of six months beginning with— (a) in a case falling within section 61(5B)(a) (fingerprints not taken previously), the day on which the person was charged or informed that he would be reported, or (b) in a case falling within section 61(5B)(b)(i) (fingerprints taken on previous occasion insufficient etc ), the day on which the appropriate officer was informed that section 61(3A)(a) or (b) applied. , or (c) in a case falling within section 61(5B)(b)(ii) (fingerprints destroyed where investigation interrupted), the day on which the investigation was resumed. (3) In sub-paragraph (2)(b) above “ appropriate officer ” means the officer investigating the offence for which the person was charged or informed that he would be reported.