21In subsection (1) of section 34 of the Criminal Justice Act 1972 (powers of constable to take drunken offender to treatment centre) for the words from the beginning to " section the " there shall be substituted the words
“On arresting an offender for an offence under—
(a)section 12 of the [1872 c. 94.] Licensing Act 1872 ; or
(b)section 91(1) of the [1967 c. 80.] Criminal Justice Act 1967,
a”.