How does he know how fast she was going? I doubt that EPA agents have radar detectors in their trucks.
I was thinking the same thing. How could he possibly know?
I think the better question is how did she know this fellow was *really* from the EPA?
I don't know about you guys, but I'm not about to pull over because some clown in an SUV has lights and a badge. Sorry. No way, no how. I have better things to do than get killed by some nut.
I heard a Texas judge state that: "Police are trained to judge speed." The defendant (not me) lost. (In that case, the defendant had been charged with speeding by a policeman who saw him from three blocks away, no radar.)
Of course, in NM, they all have radar: highway patrol, sheriff's department, city police, tribal police, BIA police, etc.