Section 43L of the Principal Act is amended by omitting subsections (1AA) and (1AB) and substituting the following subsection:(1AA) Where a traffic infringement notice relates to a red light offence or speeding offence and the offence has been detected by means of a photographic detection device (a) the notice is to be served within 21 days after the commission of the offence; and(b) if the notice is not served within that period, no prosecution may be brought in respect of the offence.