In some cases, officers used electroshock devices such as stun guns.

Source: https://northdenvernews.com/in-pa-county-jails-guards-use-pepper-spray-and-stun-guns-to-subdue-people-in-mental-crisis/

I will admit modifications only after they have spent at least a couple of years in a psychiatric institution, restrained within a straitjacket and receiving periodic electroshock treatment.

Source: https://spectator.org/the-death-of-culture-and-entertainment/

NoHo Hank (Anthony Carrigan) and Cristobal (Michael Irby) finally reunited at the end of Season 3 after Hank, the Chechen crime lord, rescued himself from a cartel dungeon and saved Cristobal, the Bolivian crime lord, from electroshock conversion therapy.

Source: https://www.nytimes.com/2023/04/14/arts/television/barry-season-3-recap.html