Lamar Odom -- 'Distinctly Possible' He'll Be Prosecuted if Cocaine Found

Cops confirm TMZ's story ... that someone from the brothel told the 911 dispatcher Lamar Odom confessed to her he had used cocaine days before he lapsed into unconsciousness, and if cops determine it's cocaine it's "distinctly possible" he'll be prosecuted.

Nye County Sheriff Sharon Wehrly just said her dept. obtained a search warrant and drew blood from Lamar in the hospital Wednesday, and the blood will now be tested for drugs.

As we reported, sources tell us doctors found cocaine in Odom's system.