I Think The Neighbours Are Cutting My Heater Power Cord

Hey all.

So just over a month ago the wire to the heater which is exposed in my back yard (side of the house) was cut cleanly, it wasn't chewed or frayed. We got someone to come and fix it and they confirmed that it had been cut. Just today we have found that the same thing has occurred.

I suspect it is the neighbours which had previously complained about the heater, as it is located close by to their house, saying that it is too loud when we use it at night. They also aren't on good terms with my mum (previous disagreements) so they could be doing this to get back at us.

I am not sure if they are entering the property through our gate on the other side or jumping the fence to access it. Just wondering if anyone has any ideas of what to do. the obvious solution is to get cameras, so if anyone has any suggestions for products, and if anyone has ideas of how to approach the situation, I'm open to anything.

Feel free to ask any questions about the situation too.

Thanks guys