Where possession and trafficking offences are concerned, it is relatively easy, since someone is usually intercepted in possession of a substance, and if the police can at least prove that trafficking took place, then possession is quite easy to prove.
Pour les infractions de possession et de trafic, c'est relative ment facile parce que d'habitude on intercepte quelqu'un en possession d'une substance, et si on peut au moins prouver le trafic, on peut prouver la possession assez facilement.