If you are caught by police and you have drugs on you, do not make any statement other than “I want my lawyer”. There is a decent chance that you are being recorded, and the last thing you want is to volunteer information or try some theory on the police officer about how the drugs got into your jacket before all the facts are in. Do not guess, ask for a lawyer. Be polite and respectful, the police officer is just doing their job, but do not help them put you in jail by consenting to a search or by saying anything.