A traffic stop in Cedar Falls on Friday led to the arrest of a teenager on drug and gun charges. Officers pulled over 18 year old Nga Reh at 1st Street and Division Street. During the investigation a gun and marijuana were seized. Reh was charged with Possession of Marijuana with Intent to Deliver, Failure to Affix a Drug Stamp, Operating a Motor Vehicle While Intoxicated 1st Offense, and Possession of a Dangerous Weapon While Operating a Motor Vehicle While Intoxicated.