From time to time, the Ridires would make something that they called "The crusade". It was a measure that the Council of Jarls made to force the citizens that lived out of the Castle to feel safer when seeing the most well-trained organization of warriors of the district present in their lives.
It was also a way to make the Ridires relax for a bit and see the outside world for a while. After all, just a little amount of Ridires would get out of the Castle to patrol outside in the different regions of the district. The major part of the security of District 42 was made by the city guards. Just in specific cases that those elite warriors would get out of their comfort zone to do something useful out there.