Whether or not a passenger in someone’s vehicle or a visitor in someone’s house will be charged with a drug offense depends on the circumstances, like what they were doing there, where the drugs were found and what common statements they made to the police. It comes down to a dominion and control issue that was mentioned previously – What’s implied by the circumstances? Did they have access to the drugs? If they were the passenger in the vehicle, were the drugs found under the passenger seat? As a guest in a home, were the drugs found in the room that they were staying in or in a backpack that belonged to them? If someone is in a place where drugs are found, then they can receive a drug-related charge based on actual or constructive possession.