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EXCLUSIVE: Colorado Authorities Trying To Interview Charlie Sheen’s Ex-Lovers About His Violent Past

Colorado authorities want to interview at least three women from Charlie Sheen’s past as they get ready to prosecute the actor on domestic violence charges, RadarOnline.com has learned exclusively.

Ex girlfriends Brittany Ashland and Kelly Preston, plus ex wife Denise Richards are all being sought for interviews, a source close to the situation told RadarOnline.com.

EXCLUSIVE: Sheen In Rehab For Cocaine & Booze

The district attorney handling Sheen’s case has not issued subpoenas and authorities want the women to cooperate voluntarily as they collect information about Sheen’s troubled past.

Sheen and his wife Brooke Mueller are both currently in rehab.

PHOTOS: Bikini Pics Of Sheen’s Ex-Wife Denise Richards

Pitkin County DA Arnold Mordkin refused to comment when asked by RadarOnline.com if he or his office is trying to interview the women.

But a source told RadarOnline.com that at least one of the women has already been contacted with the request. The interview has not yet taken place.

PHOTOS: Brooke Arrives At Court In Aspen

The Two And a Half Men star was charged with a felony misdemeanor charge of menacing and misdemeanor charges of third degree assault and criminal mischief after he was arrested on Christmas when third wife Mueller told police he held a knife to her throat and threatened to kill her. If convicted, Sheen faces years in prison.

Mordkin told Radar Online.com: “I will not confirm or deny these reports and I can’t comment on what we may or may not be considering doing in this case.”

AUDIO: Brooke Mueller’s 911 Call “I’m Scared For My Life”

When asked if he would consider requesting a hair sample from Sheen who is currently being treated in rehab for spiraling cocaine and alcohol use Mordkin was also non-committal.

“I really cannot comment on that either because we do not know if those reports are reliable – but we are expecting to see Charlie Sheen back in Court on March 15, 2010.

“We do not expect to see Brooke Mueller unless she is going to make some kind of motion in the case.”

RadarOnline.com was first to report that Sheen has been using cocaine and alcohol during the months leading up to his rehab stay.

PHOTOS: Inside The Aspen House Where Charlie And Brooke Battled

Sheen who has been married three times and has five children has a violent history with women.

In 1990 Sheen accidentally shot his fiancée actress Kelly Preston in the arm effectively ending their engagement. In 1997 Sheen pleaded no contest to criminal charges after girlfriend Brittany Ashland accused him of grabbing her by the hair and smashing her face-first into a marble floor. She also claimed that he threatened her to keep quiet about the alleged attack.

EXCLUSIVE: Brooke Mueller’s Cocaine & DUI Arrests

Then in 2006 his second wife Denise Richards filed a restraining order against him claiming that her husband threatened to kill her.

While the prosecution in Colorado may not be able to use any of those prior bad acts in Sheen’s current case, the fact that they are gathering that type of detailed information on him shows, according to the source, that behind the scenes they are not leaning toward leniency if Sheen is convicted.

DOCUMENT: Police Affidavit From Sheen’s Arrest