Firstly, the FBI is the Unites States Government’s domestic (national) law enforcement agency. The LSPD on the other hand handle the day to day maintenance of law and order. Secondly, the FBI has its own role, that of being the custodian of US national security and it will go to any extent to achieve that goal, regardless of technical or practical difficulties. Thirdly, the FBI could be likened to the brain, the police forces are the body parts which perform critical functions.
Even though the FBI is far superior to the LSPD by way of authority, eliteness, functionality, etc., it works hand-in-hand with the LSPD to combat crimes, and keep the United States of America safe and