State police say a mother and her three sons are under arrest -- accused of running a massive drug operation from their home in Mansfield.
A man was in custody Tuiesday on suspicion of growing marijuana inside his Woodland Hills residence.
How did police find out he was growing pot? He called them to report a home invasion robbery.
The report came in at about 9:15 p.m. Monday from a residence in the 22000 block of Mulholland Drive.
"We believe this all stems from the narcotics activity in the residence," Sgt. Thomas Mason of the Topanga Station said Tuesday morning.
Police were searching for two men in their 20s who broke into the home, beat the residents and took cash from them.
The resident who was robbed "was arrested after they found approximately 50 plants" in the residence, Mason said.
"There was lighting, hydroponics, ventilation -- the usual set-up," he added.
The residential neighborhood is west of the junction with Topanga Canyon Boulevard and south of the Ventura (101) Freeway.