The September 18 right-wing rally in Washington, DC brought a new wave of concerns over more potential violence on Capitol Hill as law enforcement prepares for a variety of scenarios. But it's still unclear how many protesters plan to attend. And the rally takes place on a Saturday, when both houses of Congress are on vacation, which means far fewer Legislators or staff will be in the area. Here's what you need to know: What is the rally for? The Justice for J6 rally aims to support insurgents accused the murderer January 6 Capitol Riot . Organizers say it is scheduled to start at noon ET on Saturday. Read more Who are the organizers? The rally is planned by Look Ahead America, a non-profit organization led by former Trump campaigner Matt Braynard. The group is dedicated to defending the American patriots forgotten by our government according to their website . Baynard said in a recent interview with CNN, This is a completely peaceful protest and that we told people that when they come, we don't want to see any messages about the election, we don't want to see any messages on T-shirts, flags or placards about the candidates or something like that. All the same, at least one The leader of the Proud Boys againurged subscribers across the country to come forward, although others online have discouraged participation and warned that it could be a false flag operation intended to trap supporters. Meanwhile, White Lives Matter promotes the September 18 global protests and has supported January 6 insurgents online, but it does not have a DC chapter. W What are the security forces waiting for? The security forces are preparing for possible clashes and unrest during the rally, according to an internal note from the Capitol police Reviewed by CNN. The latest intelligence report on the event notes that online chatter in support of the rally began to increase after the officer who shot rioter Ashli Babbitt made his identity public in a recent interview with Lester Holt from NBC. There was uThere is no noticeable increase in the violent rhetoric around the event and the heated discussions centered around the Babbitt shoot on social media and chat rooms, according to the memo. The document warns that many people may also view September 18 as a Justice for Ashli Babbitt rally, which could be of concern, and it is not unreasonable to anticipate violent altercations. There have been further discussions of the violence associated with the event, with an online chat suggesting violence against Jewish centers and liberal churches while law enforcement is distracted that day About 500 people have indicated they plan to attend, although the note notes that past recent events hosted by Look Ahead America had significantly lower attendance than expected and went smoothly. What security measures will be in place? The United States Capitol Police Board approved the Department's request for consent to reinstall the temporary fence around the Capitol before the rally. Fences had been erected around the Capitol following the January 6 riots, but were eventually reduced and removed over the summer. Additionally, Capitol police said in a statement Monday that their council of administration had issued a declaration of emergency, which will take effect about the time of the protest and authorize the ministry to replace external law enforcement officers as special officers from the United States Capitol Police. We want to reassure everyone these are temporary measures to keep everyone safe, The Chief of Policefrom Capitol Hill, Tom Manger , said in the statement. We are extremely grateful for the support we continue to receive from the local community and our stakeholders in Congress as we carry out our critical mission. What are lawmakers saying about security preparations? After Manger briefed the four top congressional leaders on security preparations for the rally, House Speaking Nancy Pelosi told reporters the planning looked much better . But Pelosi also noted that she had nothing to compare to, because we we I was not informed before, referring to the Jan. 6 insurgency. So it's not like I can compare it to before but ... she added after leaving the briefing. Senate Majority Leader Chuck Schumer, also stated that he believed the police in CapitoThe was well prepared, thorough, professional, and I think they are better prepared than people before January 6. CNN's Melanie Zanona, Jessica Schneider and Whitney Wild contributed to this report.