5. Sections 18B and 18C of the 1995 Act, as inserted by section 78 of the Act, only have effect in respect of—
(a)relevant physical data taken from or provided by a person under section 18(2) of the 1995 Act; or
(b)any sample, or any information derived from a sample, taken from a person under section 18(6) or (6A) of the 1995 Act,
in connection with an offence committed on or after 28th March 2011.