So, another funny combo name. DPS stands for 'Department of Public Safety'. I got arrested one time at Iowa State University for carrying a door down the street (oops!), and the way they lock your arms is the same way you do it to the follow. The reason for this name is because its a variation on both creating a wrap with the lady, but also having both arms in a kind of hammerlock position.
This salsa combo is kind of tricky to perform, so practice it various times at home to get the timing down: especially the mechanics of moving around the lady and moving their arm down (so you don't break it).
So the lesson for today? If you ever get arrested, you might be learning how to dance as well… 😉