In the new series Body Cam Cops, we have uncovered some of the most powerful, shocking and extraordinary footage filmed by cops on the ground.

Across the world, police officers are now filming the crimes they investigate and the criminals they catch in the act. Thousands of front-line cops are wearing body cameras from Santiago to Seattle, from Northampton to Malaga.

This series features some of the most controversial and breath-taking crimes committed in the past five years. We have interviewed the people involved, from officers facing crazed killers to innocent members of the public being wrongfully arrested.

Every camera has a story to tell and police forces worldwide can learn from every frame of footage recorded.

Policing in the 21st century is under more scrutiny than ever. The police body worn cameras are becoming essential to law enforcement. They are the dispassionate third eye to every situation, because the camera never lies.