New details have surfaced in the sexual assault incident against Cee Lo Green. From the looks of it, police have hard evidence on “The Voice” judge…

From TMZ

The woman who filed a police report accusing Cee Lo of sexual battery secretly recorded a conversation with the singer, and sources involved in the case tell TMZ … Cee Lo admitted slipping her a drug and then having sex with her — something the singer denies.

The woman has told cops  … Cee Lo took her to a downtown L.A. restaurant in July.  They had a drink and she says she remembers nothing after that.   The woman claims the next thing she knew she was lying naked in a bed and Cee Lo was in the room.

Sources connected with Cee Lo scoff at the claim, saying if the tape contained such admissions Cee Lo would already be under arrest.

Sources connected to Cee Lo tell us … the accuser went to a civil lawyer BEFORE going to police and demanded money from the singer to make the whole thing go away.  Other sources tell us a different story — that her lawyer called Cee Lo’s manager to find out if the singer had any communicable diseases and never made any money demands.Our Cee Lo sources say the manager shut the lawyer down and that’s when she went to cops.  Other sources say she called the cops BEFORE her lawyer called Cee Lo’s manager.