[FedCom] USMS JPATS "JUSTICE" Aero Callsign

[Ken]

Does anyone know what the current USMS aircraft fleet consists of?
Some information can be found at:

http://www.usmarshals.gov/jpats/index.html

Seems like the fleet may have had some additions to it See:
http://www.airliners.net/search/photo.search?aircraft_genericsearch=Saab%202000&aircraftsearch=
Use web browser search term "Justice".

Usually "JUSTICE" callsigns are monitored on typical Air Traffic Control VHF 
(not UHF) aero frequencies where the aircraft are operating into.   There 
doesn't seem to be any reporting of any special aero frequency being used 
nationwide.

If I remember correctly, awhile back USMS also awarded contracts for some 
prisoner air transportation activities.  I'm assuming that these contract 
flights also use the "JUSTICE" callsign designators.

Much of the aircraft logging is on the milcom list rather than fedcom BUT 
not that much activity is reported....  Perhaps it's worth fedcom monitors 
to also check out the ATC aero freqs for "clues" to federal aero activities.

Locally, I think it's been well over 5 years since I've monitored any USMS 
flights.

Ken
Springfield MA Monitoring Area