The FBI arrested a member of the Houston County sheriff's department.
27-year old Michael Shawn Campbell is charged with selling a firearm to a convicted felon.
Campbell, a member of the sheriff's narcotics unit, is also charged with possession of a controlled substance with intent to distribute.
He was arrested by FBI agents just before reporting to work Wednesday.
Campbell has been a member of the sheriff's department for two and a half years.
He is scheduled to have his first court appearance Thursday in Montgomery.