Lafayette Square, Washington, D.C.
The system induces an extreme burning sensation using a directed beam of energy.
Protesters were violently cleared from D.C.'s Lafayette Park some 30 minutes before Trump appeared with a Bible outside St. John’s Episcopal Church.
People were protesting peacefully before federal forces used tear gas to clear them from the square before Trump's photo shoot, Maj. Adam DeMarco said.
The officer's account of action against Americans exercising their First Amendment rights in D.C.'s Lafayette Square directly contradicts William Barr.
The attorney general said he ordered the street outside of the White House to be cleared and that Trump's photo-op at a nearby church was unrelated.
House Democrats called the incident in front of the White House this week a "direct threat to our democracy" in letter to Attorney General Bill Barr.
A black high schooler was sentenced to 10 years in prison over the incident that has recirculated after the president's death.