Thanks for the welcome to the forum guys!
It's interesting to hear your views on Revenue Protection; I'm wondering if any of you can tell me how the system actually works?
I'm interested to hear about where these depots actually are, and how the team operates.
Many moons ago I used to be an RPI▸ (Revenue Protection Inspector (or Retail Price Index, depending on the context)) in North London and in those days for all the services out of Kings Cross we had 3 depots, about 40 inspectors and a small but very effective fraud team. Only two ticket barriers (at Cambridge and Hitchin) in those days though!