The White House says requiring police officers to wear body cameras is one potential solution to the mistrust between police and their communities that fueled unrest last month in Ferguson, Missouri.

More than 150,000 people signed an online White House petition urging President Barack Obama to “create a law” requiring all police to wear body cameras.

That would require an act of Congress. But Roy Austin, a White House adviser on Justice and Urban Affairs issues, says the Obama administration supports the use of cameras and video technology by law enforcement.

Austin says the Justice Department is researching best practices for using body cameras. And the administration is releasing a report examining the costs and benefits.

But Austin also says that cameras alone can’t solve the problem of mistrust.

(AP)