Surveillance services in the UK refer to the use of various techniques and technologies to monitor individuals, groups, or locations for the purposes of gathering information, maintaining security, and preventing or detecting criminal activity.
Surveillance services can be provided by private companies or by law enforcement and government agencies. These services may include the installation and monitoring of CCTV cameras, the use of tracking devices, the collection and analysis of data from social media and other online sources, and the use of undercover operatives.