"Police wrote...a principal and later a teacher had been made aware of Joynes’s inappropriate actions with girls in his classroom at New Hampshire Estates ES...and that as a result, his access to students was restricted."

...But for at least one victim, the abuse continued, according to the documents.
Court filings detail what appears to be one of the most alarming recent cases of child abuse in the region involving a teacher. Police wrote that much of the abuse happened in Joynes’s music classroom during school hours and involved young girls, whom he put in sexual poses and videotaped. The alleged abuse in the 1990s involved a lengthy sexual relationship with a girl under the age of 15, whom he had sex with in his classroom at Eastern Middle School in Silver Spring.

http://www.washingtonpost.com/local/education/montgomery-teacher-lawrence-joynes-charged-with-sexual-abuse-of-15-students/2013/08/13/b4b6520a-043b-11e3-88d6-d5795fab4637_story.html