If you’re going to chemically castrate someone, I suppose a 30-year-old barista who not only raped five teenage girls, but also filmed the rapes to threaten the girls with later makes as good a candidate as any:

In a landmark ruling, a Seoul court on Thursday sentenced a 31-year-old pedophile to 15 years in prison and ordered that he be subject to hormonal treatment that suppresses sexual impulses for three years.

It marks the first time that the court has ordered the measure since a bill passed last July that allows hormonal treatment, or “chemical castration,” for convicted child molesters over 19 years of age who are at risk of repeating their crimes against minors under the age of 16.

The defendant, only known by his surname Pyo, was charged with having sex with five teenagers whom he met through a smartphone chat service six times between November 2011 and May 2012. Pyo then threatened to circulate online video footage of them engaged in sexual acts and nude photos of the minors, and also raped them by threatening them with deadly weapons.

From what I gather from the Korean-language article, the perp has to consent to the objection.