A Leighton man is due in court charged with possession of indecent images and footage of children.
John Michael King, of Church Locke, faces numerous charges of recording another person without their consent for his own sexual gratification between January 2003 and August 2012.
The alleged incidents happened across schools in Hertfordshire, but indecent photographs and footage were found in Heath and Reach,
The 50-year-old will appear at St Albans Crown Court on Friday.