Webcoercion, or operating under duress, is an effective defense against drug possession. If someone threatens you or your family, forcing you to carry out illegal acts,. Weba defense is available if the accused is able to prove that he or she had no intent to control the drug. If the crown is unable to prove control over the substance, the case should. You commit the crime of drug possession if you do one of these things with a drug or substance listed in the controlled drugs and substances act. Webpossession of illegal drugs is a criminal offence in canada. Possession can be either actual or constructive. Actual possession means the drugs were found on the. Webconfronting drug possession charges without professional legal assistance can be daunting and disadvantageous. An attorney with expertise in state and federal. Webit could be a valid defense if you can prove that your possession was medically necessary and lawful. It’s essential to consult with an experienced criminal.