Cops descended on a marijuana “clinic” Saturday, and what they say they found wasn't very clinical.

Besides 3,000 pot plants, which could be legit if this was a permitted dispensary, Los Angeles police say they also found a meth lab and cocaine processing equipment at the downtown warehouse, according to reports.

The raid at a converted warehouse at South Santa Fe Avenue and Sacramento Street happened about 3 p.m. Saturday. Arrests? Oh yes …

… officers nabbed 20 people, but it wasn't clear if they were all booked, and/or for what.

Cops said people were also living at the warehouse.

The spot is near the Play Pen strip club and a sometime arts venue called Hangar 1018.

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-With reporting from City News Service. Got news? Email us. Follow us on Twitter, too: @dennisjromero.

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