A former CIA contractor charged with beating a man in a dispute over a parking spot may enter into a plea agreement Monday that his victim says is unfair.

The hearing is to be held in Douglas County District Court, a day before Raymond Davis is scheduled to go to trial. Davis originally was charged with second-degree assault in the beating of Jeffrey Maes outside a Highlands Ranch Einstein Bros. Bagels store in October 2011.

Davis faced up to 16 years in prison, but both sides in early January tentatively agreed on a plan that called for Davis to plead guilty to misdemeanor third-degree assault. Other charges would be dropped.

In return, Davis would serve two years probation, make restitution and issue a letter of apology to Maes.

However, after reviewing the case, new District Attorney George Brauchler decided to change the plea deal, said Maes’ attorney, Larry Klayman. The new deal calls for a no-contest plea to the misdemeanor and a letter to the victim that only says Davis was not acting in self defense, Klayman said.

In a letter sent to the DA on Friday, Klayman suggested a possible conspiracy between the Brauchler, a former military prosecutor, and the CIA.

“I am also concerned and have reason to believe that the new proposed plea is also the result of improper and illegal pressure by the CIA or another government entity,” Klayman wrote.

Klayman in the letter claims an assistant DA who is working the case told him he had never had contact with the CIA “but in a recorded telephone conversation I had with him (recorded by your office) he let it slip that he did have contact.”

The 18th Judicial District’s spokeswoman Lisa Pinto said the DA’s office never even got confirmation Davis worked for the CIA.

Apparently an e-mail was sent to the CIA asking whether Davis worked for the agency, but it was never answered, she said. “The notion that we are in secret conversations with the CIA is unfounded.”

She said, Brauchler, who took office in January, is reviewing many cases cases “pending in the jurisdiction with the goal of achieving justice in every case.”

Davis gained notoriety in January 2011 when he was arrested in Pakistan for killing two men he said were trying to rob him. Davis was freed two months later after the victims’ families granted him a pardon, in accordance with Islamic law, in exchange for $2.34 million.

It was later learned that Davis was a former U.S. Special Forces member employed by a private security firm called Blackwater. He also owned a security company that does contract work for the government.

Maes has also filed a civil lawsuit against Davis.

Maes suffered a herniated disk in his neck and hairline fracture in his spine. He also aggravated a lower back injury, he said.

Getting a letter of apology from Davis is important to Maes, he said.

“I’m the one who told the district attorney he shouldn’t go to jail,” Maes said. “I thought we had a good plea bargain. He doesn’t want to admit any guilt.”

Carlos Illescas: 303-954-1175, cillescas@denverpost.com or twitter.com/cillescasdp