Deputy Chief Harold Medlock told WSOC.

"We want them to hear us as we move and do the things that we need to do, so you'll hear a lot of verbalization from our officers and one of the things you'll hear is, 'Move back!'"

The federal government is expected to pay for all of the riot gear those officers will be wearing. Police departments protecting the last four conventions received about $50 million in grants.

"This is something that CMPD takes very, very seriously," Medlock explained. "We're going to do everything we can to make sure it is a safe and secure event."