Crime runs in the family for one Montgomery County clan, police say.

Lansdale police arrested Robin Green, 41, and her son Marc Wallace, 20, after police raided their apartment Saturday and found marijuana, cocaine, drug paraphernalia and cash, according to the police department.

The raid capped off an investigation that began last year, after the police department fielded multiple reports of drug-dealing and traced the reports to a property on Hancock Street near Montgomery Avenue. Through surveillance and undercover controlled drug buys, police discovered that Green and Wallace manufactured cocaine in the apartment and that dealers bought it there to distribute in Lansdale and the North Penn region, according to the police department.

Police charged mother and son with criminal conspiracy, various drug offenses and endangering the welfare of children. The latter charge was filed because police during the raid encountered two children, one 7 years old and the other, 7 months old, living in squalor in the apartment. The children, whose relationship to Wallace and Green wasn't specified, were turned over to relatives.

Wallace and Green were jailed on $75,000 bail. The Montgomery County District Attorney's Narcotics Enforcement Team assisted in the investigation.