A jury convicted Walter Kerry Robertson of one count of possession with intent to distribute over five grams of cocaine base (crack) in violation of 21 U.S.C. § 841(a)(1); one count of possession of a firearm during and in relation to a drug trafficking crime in violation of 18 U.S.C. § 924(c); and one count of being a felon in possession of a firearm in violation of 18
I
The St. Louis Metropolitan Police Department received information from an informant that a person named “Walt” had been at the Save-A-Lot store to discuss a narcotics sale. The informant gave the police a description of the suspect and a description of the suspect’s car. As two police detectives, Detective Carl Dulay and Detective Michael Scego, approached the location given by the informant they saw a man exiting a restaurant who met the description given by the informant. The man turned out to be Walter Robertson. Robertson stated he did not want any problems and informed the detectives he had a gun in his pocket. The detectives seized the gun and approximately thirteen grams of crack cocaine.
At trial, over the objection of Robertson, the district court permitted the expert testimony of Detective Dulay and Detective Scego. The detectives testified the amount of crack cocaine possessed by Robertson was a distribution amount. They further testified dealers selling this amount of crack cocaine typically carry a gun to protect themselves from being robbed by other drug dealers. This testimonial evidence helped convict Robertson of possession with intent to distribute crack cocaine and possession of a firearm during and in relation to a drug trafficking crime.
II
The business of drug trafficking and the modus operandi of drug dealers are matters unfamiliar to jurors.
United States v. Molina,
Robertson asserts the detectives’ lack of expertise in the area of drug trafficking renders their testimony inherently
Similarly, Detective Scego is a thirteen-year veteran of the St. Louis Metropolitan Police Department. He also attended a two-week training course sponsored by the DEA. For at least the last three years, Detective Scego’s primary focus has been in the area of narcotics investigation. He makes narcotics related arrests and conducts narcotics related interviews on a daily basis. Based upon these qualifications, we find the district court properly performed its gatekeeping role and did not abuse its discretion by permitting Detective Scego to testify as an expert in drug trafficking.
Ill
After reviewing the testimony and qualifications of the detectives, we conclude the district court did not abuse its discretion in admitting their reliable and relevant expert testimony. Therefore, we affirm.
Notes
. The Honorable Stephen N. Limbaugh, United States District Judge for the Eastern District of Missouri.
. Although the district court did not hold a hearing pursuant to
Daubert v. Merrell Dow Pharmaceuticals, Inc.,
