Any person who has committed, or whom there are reasonable grounds to suspect of having committed, any offence for which he is liable to be detained under the customs and excise Acts may be detained by any officer F1or any member of Her Majesty’s armed forces or coastguard at any time within F220 years from the date of the commission of the offence.

Where it was not practicable to detain any person so liable at the time of the commission of the offence, or where any such person having been then or subsequently detained for that offence has escaped, he may be detained by any officer F1or any member of Her Majesty’s armed forces or coastguard at any time and may be proceeded against in like manner as if the offence had been committed at the date when he was finally detained.

Where any person who is a member of the crew of any ship in Her Majesty’s employment or service is detained by an officer for an offence under the customs and excise Acts, the commanding officer of the ship shall, if so required by the detaining officer, keep that person secured on board that ship until he can be brought before a court and shall then deliver him up to the proper officer.