We have people in our neighborhood posing as repairmen trying to get inside houses. I would like to have a buffer between me and the person at the door. Police

We have people in our neighborhood posing as repairmen trying to get inside houses. I would like to have a buffer between me and the person at the door. Police might not do anything about stolen packages, but they will take incidents like this seriously. I also show the footage to my neighbors to give them a heads up.