"Where the driver of a vehicle is alleged to be guilty of an offence to which this section applies- [and it was common ground that the offence observed was such an offence] (a) the person keeping the vehicle shall give such information as to the identity of the driver as he may be required to give by or on behalf of a chief officer of police, ..."
"A requirement under subsection (2) may be made by written notice served by post; and where it is so made- (a) it shall have effect as a requirement to give the information within the period of 28 days beginning with the day on which the notice is served, ..."
"Where the driver of a vehicle is alleged to be guilty of an offence to which this section applies- (a) the person keeping the vehicle shall give such information as to the identity of the driver as he may be required to give- ..." and subsection (4): "... a person who fails to comply with the requirements of subsection (2)(a) above shall be guilty of an offence ..."
"In my view, as the section is silent as to what information can be included in the requirement, whether the requirement be oral or in writing, what Parliament intends is that there should be a power in the requesting authority -- whether it be the police or the local authority -- to include in the requirement reasonable instructions as to the manner in which the information requested is to be provided. There could therefore, and indeed in my view should, be included in the request the information as to whom it is to be provided, where it is to be provided, when it is to be provided and by what means it is to be provided. As long as the request is a reasonable request, then it is a lawful one."
"... it must be implicit in section 112 that the local authority, or the chief officer of police as the case may be, can require information as to the identity of the driver to be given within a reasonable time and by reasonable means."
"Where on the summary trial in England and Wales of an information for an offence to which this subsection applies- (a) it is proved to the satisfaction of the court, on oath or in manner prescribed by rules made undersection 144 of the Magistrates' Court Act 1980 , that a requirement undersection 172(2) of the Road Traffic Act 1988 to give information as to the identity of the driver of a particular vehicle on the particular occasion to which the information relates has been served on the accused by post, and (b) a statement in writing is produced to the court purporting to be signed by the accused that the accused was the driver of that vehicle on that occasion, the court may accept that statement as evidence that the accused was the driver of that vehicle on that occasion."