The Sinners Are Much More Fun - S2-E2
Revealing mistake: When Chucky takes a photo of Jake and flees up the chimney, the flash from the camera is very unrealistic. It doesn't cast shadows, nor does it overlay over the room properly. You can tell all they did was use simple effects to make a translucent white shape blink on the bottom corner of the frame.
Answer: They were blamed for the death of Jake's foster brother, which was deemed a terrible accident, and they were sent to the reform school as a punishment. Presumably, when they had to leave the reform school given what happened, they were instead given community service as punishment.
TedStixon