undercover agent, informer, cooperator, supergrass, conspirator, accomplice, snitch, tipster, drug trafficker, sting operation, investigators, smuggler, codefendant, affidavit, prostitute, prosecutors, wiretap, detectives, narc, coconspirator, ringleader, acquaintance, hashish, agent provocateur, mobster, trafficker, druglord, drug peddler, defendant, defector, cellmate, narcotics, abscam, bodyguard, interrogator, cocaine, arrest, drug enforcement administration, launder, imam, indictment, drug enforcement agency, suspect, search warrant, drug lord, heroin, polygrapher, alphonse capone, gangster, bribe, fugitive, stool pigeon, alias, bagman, pimp, peddler, crack addict, prosecution, witness, extortionist, grand jury, eyewitness, thirdhand, con artist, courier, stoolie, bootlegger, middleman, whistleblower, confession, underboss, police, bondsman, gunrunner, plotters, kidnappers, feds, kickback, blackmailer, forger, lawmen, conspiracy, policeman, eavesdropper, methylenedioxymethamphetamine, lieutenant, trooper, hitmen, hackie, alibi, whistle blower, kingpin, implicate, bookie, hawala, hideout, revenuer, superiors, assassin, corroborating, deliveryman, testimony, informants, interviewee, interlocutor, interviewer, respondent, interviewees, partner, caretaker, customer, driver, foreman, collaborator, doctor, interlocutors, volunteer, client, correspondent, defendants, employer, item, psychodiagnostic, report, sociometric, observational, retest, clinician, posttest, rater, correlational, semiquantitative, structured, summative, usability, anecdotal, conjoint, followup, laboratory, psychophysical

betrayer, deponent, rat, squealer, testifier

leaker, passive source, transcribe, whistle-blower, whistleblower, whistle blower

communicator, speaker, talker

source