Shortly after the creation of CASP, this term is coined to describe the methods with which the organization does business. Gerald Fox, the leader of CASP, uses the theory of working from the ground up. By finding the underlings of particular crime rings, it becomes a matter of finding their higher-up until you reach the top.
This method leads to hundreds of people suspected of working for crime rings being arrested and many never returning to their homes. Because the UC put almost no restrictions on CASP when it was created, CASP agents require little more than suspicion to warrant an arrest. If a neighbor thinks the man next door spends a lot of time on his Computer, than that is sufficient evidence to arrest him for suspicion of Hacking.