[axus]

Somehow I doubt the database detailing the history of subpoenas is as accurate as the one containing all the phone records.

Is there anything like the FISA court for these subpoenas? I couldn't find any kind of checks on their power.

[socillion]

The DEA uses "administrative subpoenas", which they are allowed to unilaterally issue for anything relevant to an investigation.

Here's an older article on them: http://www.wired.com/threatlevel/2012/08/administrative-subp...