This is true since it may cause injuries. If householders do use barbed wire they should check that their household insurance will cover them for any injuries caused by it. A s an alternative, a solid brick wall with trellis fencing attached to the top should be enough to keep most intruders out.
Barbed wire has attracted some recent controversy - for no discernible reason. It's a useful protective tool that has been around for a very long time, and will be around for a long time to come. There are no equivalent inventions on the market at the moment, which means that barbed wire will continue to have a prickly, positive future.
It probably does not need to be used as often as it is, considering how dangerous it is, but there is little to no reason for goverment interference in how often it should be used. If it is being used as a weapon, maybe there should be consequences for that, but there are plenty of legitimate uses.
If a person owns private property, they should be allowed to put up barbed wire if they want to. There are places where there is a lot of crime. There are places where the police are corrupt. People should have a right to defend themselves and their families with barbed wire if they want to.