DENVER (KDVR) — As one of the largest demonstrations of the year prepares to take shape on the steps of the Colorado State Capitol, Denver police are taking to social media to outline what participants can expect.

The “No Kings” rally is set for Saturday and is expected to draw thousands of people. In advance, the Denver Police Department released a series of “Know Before You Go” posts, addressing everything from protest rights to the variety of uniforms and vehicles that could be present during the event.

The posts emphasize that peaceful protesting is protected under the First Amendment and reiterate that DPD does not coordinate with Immigration and Customs Enforcement or other federal immigration agencies.

“They want to make sure it’s well known that law enforcement come in every shape and size,” said James Allbee, a former officer and law enforcement procedural expert. “It’s going to include vehicles, it’s going to include uniforms, it could be plain clothes. They could be just out in the crowd.”

The department also encouraged protesters to report any illegal or dangerous behavior and assured the public that officers will be on-site for crowd safety.

“They just want to make sure that people are staying safe, and people can come out and exercise their First Amendment right,” Allbee said. “You want to make sure everyone feels safe, welcome, and able to go home without getting hurt.”

The rally is centered around scrutiny of government overreach and calls to protect democratic rights. FOX31 will have team coverage from the Capitol on Saturday.