Secret service? Lancelot thinks about thing, wrinkles his nose.

"I'm not so sure -- do the secret service do much in the way of investigating? Guardians help enforce the Council's laws as well as protecting its members when the need arises."

Lancelot doesn't really know enough about American law specifics to know if that is at all similar. It might be, it might not be. Although, he supposes the Secret Service may not be bound by magical legal threats.

(Unless they are).