What would be the LEGAL implications of the following: 10 p.m. on week night, no expected visitors and doorbell rings in 3-4 rapid ring "burst". Nobody is at the door upon looking out peephole and side windows, So you slowly open the door and step out onto front porch (weapon still holstered/or not). At this point you see a person in the neighbors yard across the street run a few steps and quickly lay down next to shrubs in obvious attempt to hide. Do you: 1. holler for person to i.d. themself? 2. go back inside and call police, and then your neighbor to warn them? 3. I'm guessing that you could not legally draw(or have hand on) your weapon and approach suspected perp, while summoning help/LE. Strange situation, but it happened to me. I ended up doing option #1. It turned out to be a neighborhood kid out with his friends goofing around. He stood up once he knew that I had seen him, and yelled that I did in fact see him. I promptly oredered him to go home. It got me thinking though... If this had been some sort of bad guy, to what extent can someone intervene beyond option 2 and/or 1? This seems to play into any other situation where you witness some suspicious action in light of some other precipitating factors. I've read about folks stating that they would hold the perp until the cops got there--but how realistic and/or legal is that?? To me, it seems that this is NOT a SD situation, and therefore option 1 or 2 are the end of it. Either way--Since we are NOT LE, to what extent can we intervene in witnessed non-lethal criminal activity as citizens?