"I suspect you have been driving a motor vehicle on the road having consumed (in effect, excess) alcohol. I require you to provide a specimen of breath for a breath test. I must warn you if you fail or refuse to provide a sample you will commit an offence for which you could be arrested."
"For my part, I think there is force in Mr Stobart's submission that in those circumstances any reasonable police officer would have suspected that an offence was being committed and would have suspected that the appellant, as the licensee, was one of the persons committing it."
"The appellant might answer the question in a number of ways. He might answer it truthfully or untruthfully, but it is a fundamental observation that he was being invited to incriminate himself if he was in fact committing an offence. Moreover, according to Sergeant Scrivens, that is precisely what the appellant did, and as a result the evidence of what Sergeant Scrivens attributed to him became crucial in the subsequent trial."
"An interview is the questioning of a person regarding their involvement or suspected involvement in a criminal offence or offences which, under paragraph 10.1, must be carried out under caution."
"A person whom there are grounds to suspect of an offence ... must be cautioned before any questions about an offence, or further questions if the answers provide the grounds for suspicion, are put to them ... "
"We were of the opinion that:- A discussion took place in the waiting room of the custody suite at the Police Station at Crawley. A question was asked by Inspector Hodnett regarding how the defendant had travelled to the Police Station. This was with the intention of finding the possibility of whether an offence had been committed. No interview took place prior to the caution. No breach of Code C took place. The reason for our decision is as follows:- The question was merely preliminary and was analogous to the police stopping a driver and asking whether he had been drinking, prior to administering a caution and proceeding to require a breath test."