What are the rules when it comes to police officers and bystander videos?

In this image made from a video provided by KNBC-TV, authorities investigate the scene after a fatal police shooting Friday, Aug. 7, 2015, in Long Beach, Calif. Long Beach police shot and killed the man they say stabbed multiple people on Friday. His name and other details haven't been released. (KNBC-TV via AP) MANDATORY CREDIT

There's been talk of how video can help improve the relationship between police and local communities. But what happens when police officers erase those videos?

There's been a lot of talk about how video can help improve the relationship between police and local communities.

Some say body cameras on police officers could help explain police actions, by showing an entire interaction instead of just the moments of conflict.

Others point to video shot by witnesses as a way to monitor police action. So, what are the rules that govern when and how bystanders can shoot video? And what happens when police officers erase those videos?

For more, Eric Markowitz Senior Writer for International Business Times, joined the show .

To hear the full segment, click the blue play button above.