Earlier quoted context omitted.
Imagine a system that works as follows. You can have people assassinated. In order to do so, however, you need to fill in a hundred-page form with exhaustive details of your personal finances, your medical history, and the contents of your computers' hard drives; and then you need to play six sets of tennis against a strong player and win at least two; and then you need to play a 7-game chess match against a holder o…
That's a terribly analogy. The bureacracy isn't there as just a speedbump. It's there to make sure you don't waste time on cases doomed to fail. Secondly, surveillance is an essential tool in fighting crime. Assassinations are not.
State and federal law enforcement can request a warrant. The turnaround time is far lower, the search methods more diverse, and the evidence gathered can be used in court.
Unfortunately, state law enforement can still subpoena your email metadata and your phone records without a warrant: https://en.wikipedia.org/wiki/Smith_v._Maryland