A teacher at Northwest Academy of Health Sciences, a Baltimore County Public Schools middle school, has been charged with sexually abusing a 13-year-old female student during school hours.

Chadwick F. Zamarron, 35, of the 4300 block of Breeders Cup Ct., 21133, is charged with sexual abuse of a minor, perverted practice, second- and third-degree sexual offense and sex abuse by a person in authority.

Zamarron is held without bail at the Baltimore County Detention Center.

Detectives from BCoPD's Crimes Against Children Unit began an investigation last week, when the student told her mother she had performed a sex act on Zamarron. During a subsequent interview with a social worker, the girl said that beginning in  January 2017 she sent messages sexual in nature to Zamarron via various social media platforms. After that, a friendship developed that involved verbal, sexual and electronic communication occurring during school hours.

In February, the investigation showed, the relationship became physical and involved kissing and sexual acts performed periodically in Zamarron's classroom and office through February and March. Zamarron wrote hall passes providing excuses for her not to be in scheduled classes.

Northwest Academy is located at 4627 Old Court Road, 21208.