Tests may detect illicit drugs.Logical formLearned from4 sentences. Tappers can be illicit.Logical formLearned from4 sentences. Exchanges can be illicit.Logical formLearned from4 sentences. Books can be illicit.Logical formLearned from4 sentences. A (cash flow) can be illicit.Logical formLearned from4 sentences. A (drug distribution system) can be illicit.Logical formLearned from4 sentences. Doings can be illicit.Logical formLearned from4 sentences. A (file trading) can be illicit.Logical formLearned from4 sentences. Dot.coms can be illicit.Logical formLearned from4 sentences. (Mail sources) can be illicit.Logical formLearned from4 sentences. Combinations can be illicit.Logical formLearned from4 sentences. An illicit drug can be dangerous.Logical formLearned from4 sentences. A (drug scene) can be illicit.Logical formLearned from4 sentences. Prenatal exposure can be to illicit drugs.Logical formLearned from4 sentences. An (opium traffic) can be illicit.Logical formLearned from4 sentences.