Property can’t protect itself from bad people doing bad things, but a camera can do the watching, along with human eyes. Think about this; property is damaged, but who did it? How will anyone know what happened? Humans may see and they may not. A camera is looking when human eyes are not, or cannot.
People are an odd creature. Sometimes they don’t see what they think they saw. On other occasions; what they saw is not what they saw. As a precaution, when stating what had been seen, state clearly and accurately. Only state what you saw, not what you think you saw.
Cameras are the eyes that do not blink. What it sees, is what it sees. As a result, the unblinking lens of a camera will report what it sees. Many who do not understand observation, mistake what they see as being what they want to see. Depending on human eyes could be a sizeable risk, but the lens of a camera, shows what is there. A security camera offers a level of security in addition to the human element.