s 2(3), that it is not practicable to serve such a notice, or that service would jeopardise the investigation. I See Chapter A.2 for more detail 2 Hamihon v Naviede (19951 2 AC 75. 3 Criminal Justice Act 1987. s 2(9). 4 For the meaning of 'explanation' in the similarly worded s 447(5)(2)(10 of the Com