Medium to lg sized dog. Either photo-electric or motion sensor lights, for all areas of your property. IF you do not have your outside lights on, you are a target. Keep garage doors closed same for front, rear and side entry doors. Have a neighbor or friend pick up and papers or mailers left on lawn or door handles. THESE the basic home security system features everyone should have in place. You can say they already done, perhaps, however you would be surprised how many board members do not. Across the street is a lg sign that says NEIGHBORHOOD WATCH. That block has not one single outside light on, anywhere. 95% of that block leaves the garage door wide open, front door open and i can watch 40% of those houses LG SCREEN TV'S from the street!.
Not what you were inquiring about, but some food for thought.