r.3 If objection is overruled and the witness gives evidence, the accused cannot afterwards object.4 MIS Guidelines. p 18. 2 Rio Tinto Zne Corpn is Westinghouse Electric Corpn (1978) AC 547; Must v Park Lane Hotel(1942) 2 KB 253. 3 Reyes (1861)1 B & S 311 (witness pardoned for offence: possibility of impeachment too remot