Are Home CCTV Systems Legal?
Yes, it is perfectly legal as long as due care is taken. Most people who choose to install CCTV at home do so primarily to deter would-be intruders from trespassing onto or breaking into their homes, and this is completely legitimate.
You cannot stop your neightbour from installing a Home CCTV System or from operating any kind of video recording device, such as a camcorder. For example, Using CCTV At Home can often help police secure a conviction for crimes that have been committed, such as a theft of a car parked outside your home or to identify individuals who are engaging in Anti-Social Behaviour.
That said, in such cases, the CCTV System you might have at home is more likely to act as a deterrent. This is simply because in a residential area would-be criminals are likely to be far more aware of residential CCTV installations, and so are more likely to avoid doing anything which might contravene the law.
In cases of people who are able to provide video evidence of crimes or acts of anti-social behaviour being committed outside their own homes, that will usually come about as a result of some covert filming using a camcorder or digital camera.