[header] How to defend yourself against possession charges when you had no knowledge of the crime [title] Seek referrals from family and friends. [step] If you know anyone who has been in a similar situation, ask if they would recommend the attorney who represented them. Since these people are close to you and know you well, they can be your best resources. 
[substeps] However, keep in mind that just because an attorney worked well for a friend doesn't mean that same attorney will work well for you. Criminal defense is a broad field, and attorneys often specialize in particular areas of the law.