I don't do that. The law enforcement agency gathers evidence. I don't get to search, seize or arrest. I can set up equipment. I can report what I see.
Engineering is the most difficult because of the terrain.
We have to use a lot of engineering techniques. The most tedious, if you will, are the helicopter missions. There are places along the border where that black line just doesn't show up all the time. If they fly across the border I have a major problem. I think it happened once years ago.