No. 15. Customs (Amendment). 1973. (2) Where any proceedings, whether civil or criminal, are brought against the Comptroller or against any officer or constable on account of the seizure or detention of any thing, and judg- ment is given for the plaintiff or prosecutor, then if either:- (a) a certificate relating to the seizure has been granted under the fore- going sub-section; or (b) the court is satisfied that there were reasonable grounds for seizing or detaining that thing, the plaintiff or prosecutor shall not be entitled to recover any damages or costs and the defendant shall not be liable to any punishment; Provided that nothing in this sub-section shall affect any right of any person to the return of the thing seized or detained or to compensation in respect of any damage to the thing or in respect of the destruction thereof.. (3) Any certificate under sub-section (1) of this section may be proved by the production of either the original certificate or a certified copy thereof purporting to be signed by an officer of the court by which it was granted. Provision as 90. (1) Any person who has committed, or to detention whom there are reasonable grounds to suspect of of persons. having committed, any offence for which he is liable to be detained under the customs laws may be detained by any officer or constable at any time within three years from the date of the commis- sion of the offence. (2) Where it was not practicable to detain any such person as aforesaid 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 or constable at any time and may be proceeded against as if the offence had been committed at the date when he was finally detained. (3) Any person may detain a person who has committed or is' reasonably suspected of having committed an offence against the Customs Laws,