Previously On stone age, there was no law anyone stronger can easily suppress the weaker. As humans grew socially it keeps on developing an environment where it can live safely. 

Introduction of technology added a new chapter in it. Humans started using technology to develop a safe environment for living. One such technology is CCTV ( Closed Circuit Television). CCTV records everything in its range day and night. Presence of CCTV can prevent crime in many ways.

1. Fear of Being Caught:

- Only presence of CCTV in any place itself prevent crime as no wrongdoer would like to be recorded in camera. It is found in a survey that cities have a drastic change in crime rate after the installation of CCTV. Many crime-prone areas have reported reduced no of criminal cases in that particular area just after the installation of CCTV.

2. Video Proof of crime:

- Any crime took place in an area under CCTV Surveillance will be recorded in CCTV and face of criminal can be seen in video recording. Police can catch the criminal with greater ease. An area where more no of criminals in jail will further reduce the crime in such an area. Also,  due to active police activity criminal hardly dare to do any crime.

3. No corruption to protect criminal:

- Once any criminal caught in CCTV camera doing something criminal under law. He will not be able to protect himself by just using bribery to any corrupted officer. Proof in video format can not be  denied. Even corrupted officer will be compelled to take action against such activity.

4. Catching criminal by traffic CCTV:

- Criminal committing a crime in the non-CCTV area can also be caught by the traffic CCTV camera. Once a criminal commits its criminal activity and fleeing from the site can later be spotted using its vehicle number, model or color on the video recording of traffic CCTV camera.