Couldn't they have at least held these guys long enough to search the contents of their laptop and vehicle, not to mention searching the area for sabotage?
Trap a mouse and he'll always try to get back to his nest.
Let's see what the computer says.
We were always testing the cathodic protection systems on our water mains. At this point in time (post 9-11), folks would be calling us in as "suspicious" left and right.