SANFORD, Fla. -

Sanford police arrested a registered sex offender on charges of selling heroin out of a home with children in it after a two month investigation.

Julius Rooks, a registered sex offender on life parole, was charged with tracking heroin, possession of a firearm, possession of drug paraphernalia and conspiracy to destroy and tamper of evidence, according to the report.

The possession of over 14 grams of heroin itself holds a minimum mandatory sentence of 15 years.

Police said they received a tip that Rooks and Robert Flanagan were dealing in heroin. After the two-month surveillance of the home on South Magnolia Avenue, police searched the home and found 23 grams of heroin, a handgun, drug paraphernalia and $1,600.

According to the report, two children, ages 7 and 8, were found in the home at the time of the search warrant. Child Protection Services was called and the children were taken into custody.

Flanagan was arrested on charges of possession of heroin and destroy/tamper of evidence.