An Air Force Academy cadet accused of using the Internet to arrange a meeting with a 13-year-old girl for sex has plead not guilty in civilian court.

Senior cadet James W. Crawford, 22, will go on trial in June. Until then, he will continue to attend classes at the academy, a spokesman said. He is free on $2,000 bond.

Crawford is charged with enticement of a child and attempted sexual assault of a child. He faces a maximum sentence of life in prison, according to authorities.

Crawford was arrested last November inside a Colorado Springs fast food restaurant where he allegedly planned to meet the "girl" he'd contacted on the Internet.

Colorado Springs police said that Crawford planned to meet the girl, take her to an undisclosed location and have sex with her. The plans had been made on an Internet instant messaging system from a computer at the Air Force Academy, police said.

The "girl" was actually an undercover Colorado Springs police detective. Police said Crawford arrived at the fast food restaurant and contacted a female police officer posing as the girl. He was arrested during the meeting.

The Colorado police department's Internet crimes detail has made more than two dozen arrests since it began a year ago this month. Among them is an Air Force Academy graduate, 2nd Lt. Jason W. San Souci, who was arrested last October. Like Crawford, he faces charges of enticement and attempted sexual assault of a child.

San Souci attends the University of Colorado at Colorado Springs. He has pleaded not guilty and his trial is scheduled for April.