ST. LOUIS — Two heroin and fentanyl dealers used a jail guard's home to stash their drugs and guns, federal investigators said Wednesday.

Teneisha D. Moore, 26, a correctional officer at the St. Louis Medium Security Institution, was arrested Wednesday and charged with one count of conspiracy to distribute a controlled substance and one count of aiding and abetting the possession of firearms in furtherance of that drug trafficking crime.

The arrest followed a raid at her home earlier in the day that found fentanyl, heroin, marijuana, ecstasy and guns, federal prosecutors said. Moore was at home with her 4-year-old child.

That raid followed wiretapped conversations between Moore's cousins, Christopher Santel Moore, 33, and Marcus Jermaine Moore, 35, in which they discussed using her apartment as a "stash house" for guns and drugs, court documents say.

Christopher and Marcus Moore ran a car wash at 3840 Cote Brilliante Avenue as the base of their drug dealing, prosecutors claim. They supplied multiple lower-level dealers and are both members of violent gangs, they said.