The first question defense attorneys answer is whether the drugs in question were the product of a legal or illegal search. If law enforcement conducted an illegal search of someone’s house, car, or person, the illegally obtained evidence must be suppressed. This means that the product of an illegal search or seizure is not allowed at trial. This rule is commonly known as the exclusionary rule, which basically states that police cannot benefit from violating a person’s constitutional rights. When a criminal defendant’s Fourth Amendment rights are violated, the evidence found by police cannot be used against the defendant.