You're going to have to excuse the quality of some of these photo's, they were taken while undercover monitoring local troop buildup, using a hidden video camera 

There were four troopers acting as primary security, along with a sandtrooper (their commander), and a scout. As you can see from these photo's, all were well armed and certainly willing to use force to suppress the human's present.

See this happy looking guy?
He wasn't smiling a couple of minutes later when they took him outside!

They were civil most of the time, and didn't push the locals around too much.