There’s a big problem down here with intruders. No house is built without barred windows. Barbed/razor wire is no real deterrent , they just cut through it. The only solution is an electrified fence, it won’t wont harm them but it’s usually sufficient to deter. There are power outages here so important to have a battery backup so an alarm sounds at least.
Last time they came though our house to target next door, cutting the wire as they went. The neighbour in the next but one house came out and loosed off a few shots with his revolver!