One point that has been over looked, this is a commercial means of transport. It is highly governed by our government. Railroads are now under close scrutiny and protection of Homeland Security. The DHS has a lot of authority to investigate, arrest and seize items and property without violating the 4th Amendment now. In Texas, the RR Police are commissioned by Texas DPS as Texas Rangers, and have arrest powers ANYPLACE in Texas. Texas EMT can verify this through the Texas Attorney General's Office or anyone else through the Attorney General website. If an item is stolen from a crew or crew truck, and it is reported, DHS will usually investigate it if it is an item capable of doing harm to the RR, or injury to any person with the RR, or in a civilian capacity. It has gotten real sticky these days. These transmissions fall under some of the DHS violations, and may have been investigated as such by them, and the arrest and seizure made by them. What it boils down to, is that no matter what, use some common sense, and just don't do stupid stuff. Transmitting on a frequency you are not licensed for, or have no WRITTEN authorization is just asking for trouble. Even in an emergency, there "usually" are other options, instead of jumping on a frequency you do not really need to use. I spent a number of years working on some of these same type of cases, and really don't want to see or hear of anyone here, ending up in the middle of a mess they don't need. As for the arrest by the FCC... Well it was mentioned the use of U.S. Marshal's, or the Federal Agents. That too is true, and if the FCC had agents involved, wrote a complaint/affidavit, and got a warrant issued, the Feds enforced the action(s), and that was pretty much the end of that part. Sure, there is the offer of a trial, but when caught red handed in a federal case, usually an offer is made, and it is best advised to take it, as it only gets worse. Whether it was the FCC, DHS, or RR I am sure there was proof positive (and will be in future cases) that would make most defense attorney's advise their client to take the offer...
Knightrider