Law enforcement sources tell us a woman filed a police report claiming the troubled comedian squeezed her butt twice as he walked past her on a sidewalk back in April. She also said he made lewd comments.

According to docs, obtained by TMZ, the L.A. City Attorney slapped Dick with misdemeanor sexual battery, as well as misdemeanor simple battery ... for allegedly touching the woman.

As we reported, Andy's wife claims he's been spiraling back into booze. He also threatened to lick and grope one of our photogs, and threatened suicide.