I was on the fence about responding to this at first and re-read the original post twice - as it had popped up on the weekly update email from this forum. Being retired LE myself, I do keep a Shield 45, spare mag and light handy, for a time when I hope I never need it. My concern/ worry was with the response to a house alarm, with most likely local LE already responding. I think this could end in disaster for someone trying to help, on what is just a property crime at the time - unless the responding PD is fully aware your involvement. This keys my memory of an Officer who responded off duty to an incident, near his own residence, without the knowledge of the local PD and was shot and killed as a result, it may have even been his own department, I just can't recall all the details, but it was within the last year or so, maybe Washington state? Apologies for the drift of the thread, but any sort response from non uniformed people (LE or not) always worried me. Apologies, as this is not meant to offend or second guess anyone's actions. Thanks, Bill in MA