The acronym CCTV comes from the words: Closed Circuit TeleVision. Video surveillance represents a part of CCTV technology linked with video monitoring of various places to improve security of people and property.
Installation of video surveillance systems requires the highest technical culture and ability to forecast even hardly probable incidents.
In the case of surveillance systems, each installer and user must be aware that devices having too low parameters, not well suited for the purpose, may bring threat to life or property in the future. It will also effect in reliability of the system and possible frequent servicing problems.
In many countries, e.g. in Poland, the job of building video surveillance systems requires state or local permits, in the form of license and/or concession.
License - permission for particularly assigned tasks/projects connected with protection of people and objects, necessary for every person and firm offering services in this field. License of the 1st level authorizes the person/firm to build installations, license of the 2nd level enables them to design the systems. Application form for both license types can be issued at the same time. No exams are required - only proof of the knowledge in the field of electronics (e.g. diplomas, degree certificates), as well as in some mechanical disciplines. The police will also formulate their opinion regarding the candidate.