Carnegie police, in conjunction with the Allegheny County district attorney's Narcotics Enforcement Team, yesterday culminated a three-month investigation into illegal drug sales with the arrest of Glenn G. Siegfried, 42, and his wife, Sharon, 42, in their home on Idlewood Avenue, East Carnegie.

Both were charged with multiple counts of conspiracy to possess and deliver cocaine, possession of cocaine, possession with intent to deliver cocaine and delivery of cocaine.

Two vehicles, several firearms, heroin and drug paraphernalia were seized.

Carnegie police had arrest warrants for five additional suspects.