It is the job of everyone in a community to look out for each other. You don't need the police for that. It is called being a good person. Seeing kids loitering where they shouldn't be isn't evidence of anything besides kids loitering...things that kids tend to do. If when you tell them to scram, and they scram, that seems to solve the problem pretty quick don't you think? Or I guess you can wait for the police to show up and do the same. Your call.
And when the police show up and tell them to beat it, that somehow prevents them from not committing crimes in the future? See something say something has got you hook, line, and sinker.
Sorry your house has been robbed, by why would you confront suspicious people??? You mean you didn't immediately call the police? Weird. Do as I say not as I do sort of thing? Why were you just arguing against confronting suspicious people in favor off calling police? Are you always this contradictory?
Ahh, I see now. It is emotional for you. That some douchebag stole your dead father-in-laws jewelry means everyone suspicious is a burglar and you should call the police straight away.
Where is this coming from? The OP confronted them (like you said you have done before, hypocrite), and they left. Only you and your strawman are talking about murdering suspicious people and 'intimidating them'. Me and others are talking about telling them to beat it when they aren't suppose to be there.
Good luck to you. I'm sure if you call the police enough on your neighbors they will surely be willing to make sure to look out for you...