annotated bibliography for those 5 sources with citation

GENERAL

Homeland sec

https://www.dhs.gov/sites/default/files/publications/CCTV-Tech-HBK_0713-508.pdf

How CCTV works Date 12/18/18

https://reolink.com/cctv-camera-full-form/

Government Europea

https://www.governmenteuropa.eu/information-security-cctv-systems/85930/

Caught On Camera 

https://www.caughtoncamera.net/news/different-types-of-cctv/ 

CSS

https://www.csscorp.us/blog/cctv-security-cameras-basic-information-about-cctv