An important thought about neighborhood watch is that if the community is not dysfunctional, every member of the community is de facto part of the watch. If someone is loitering on your neighbor's back porch and you see it, wouldn't you call it in?
I don't think organized citizen patrols are as necessary in a functional community as some indicate. If the community is falling apart at the seams, I'm moving my family to another community ASAP. I realize that everybody's situation is different but I would like to see more emphasis on what used to be called the good neighbor policy and less emphasis on neighborhood patrols.
If you live there and you have eyes and ears, you are already part of the watch. No title, gun or patrol car necessary. Just sayin'.
Gun control...that's when you learn to hit where you aim.