Known as “molka”, spycam videos are largely shot by men secretly filming women in schools, toilets and elsewhere.

The taskforce also targets “revenge porn”, private sex videos filmed and shared without permission by disgruntled ex-boyfriends, ex-husbands, or malicious acquaintances.

In the highest-profile example, star K-pop singer Jung Joon-young was arrested in March on charges of filming and distributing illicit sex videos without the consent of his female partners. His court verdict is due next week, with prosecutors demanding seven years’ imprisonment.

The twin phenomena have become increasingly widespread in the hyper-wired South, driving tens of thousands of women to demonstrate against them in the streets of Seoul last year, chanting “My life is not your porn” and demanding authorities take action.

Sitting at their desks, the KCSC staff — most of them assigned from other roles at the commission, and four of them women — have the cautious manner of government bureaucrats.

An Hyeon-cheol came through this year’s competition for highly-coveted government jobs at the KCSC, when there were 146 applicants for each available position, but his duties are a far cry from what he expected.

“It was difficult to maintain my composure,” the 27-year-old said of his first days as a civil servant. “I saw many provocative pictures of a kind that I had never seen before in my life.”

The head of the monitoring team Lee Yong-bae told AFP: “When I went outside, I could not look at women around me because pictures I saw in the office overlapped in my mind’s eye. I had to keep my head down.”