C-SEC IDEA: The Citadel Security is the law enforcement for the Citadel with the responsibility of protection millions aboard the space station. Hundreds signed up in the hopes of securing a spot but applicants are scrutinized and have to be sponsored by their ambassador. Even then, they have to deal with the training and boot camp regardless of background. And after all of that, the rookies are sent out to gain some experience in the peaceful Presidium before being thrown to the wolves in one of the many wards. It has always been like that since its foundation. Until 2183. 

On that year, the Council stripped Saren Arterius of his Spectre status thanks to the evidence provided by Officer Vakarian and the Systems Alliance commander known as John Shepard. They also decided to make Shepard the first Human Spectre and gave him the task of killing Saren with several possible leads. Afterwards, the Council knew for a fact that Saren still had contracts in the Citadel and contracted Executor Venari Pallin for a private meeting to discuss the matter. It was made clear that Saren will used his resource within the Citadel and C-Sec to undermine the Human Spectre's task. Executor Pallin didn't like the thought but knew that a secret task force was needed to eliminate the rouge Spectre's contracts and friends in the Citadel. 

It was then that Operation Kingslayer was created with the goal of ensuring Saren's presence in the Citadel was completely cut; however, there was a big problem. C-Sec was mostly under Saren's influence with the expectation of the Executor himself and a few loyal officers, but it wasn't going to be enough. It was when that he got the idea of using the new arrival