EL PASO, Texas -

A former Las Cruces middle school basketball coach currently in jail has been indicted.

Erik Khan, 33, is charged with second-degree criminal sexual contact with a minor after allegedly performing illegal physical exams.

Authorities said he performed physical exams on at least three student-athletes at Picacho Middle School in 2007.

He allegedly posed as doctor on a day other physicians conducted physicals. A Las Cruces Police Department spokesman told ABC-7, in early March, some students referred to the coach as 'Dr. Khan'.

Khan was arrested in May of 2012 on child pornography charges and awaits a federal trial.

Khan was also a volunteer coach at Mayfield High School.