The Ministry of Education is reportedly stunned by a local teacher’s dedication to anatomical research after he was caught filming the buttocks of six female colleagues.

Court documents suggest the 53-year-old educator spent years compiling a digital library of “lower-body assessment criteria” while pretending to check his emails.

“I thought he recording lesson plan, then I see his phone angle always pointing at my backside lah!” said one disgruntled colleague.

Authorities also discovered 174 obscene video files, which the man insists were part of an intensive “lifelong learning” module for his private collection.

The educator will now swap his red marking pen for a prison jumpsuit, where his own rear assets will finally face rigorous peer review.