Arrests Investigations Arrest Metropolitan Police Department Injuries Investigation Reopening of Buildings Active Threat Regional Offices Response Protocols Building Evacuations Aquilino Gonnell Harry Dunn Threat Investigations Response to Fire Alarm Incident Threat Briefings Arrest Warrant Surveillance Footage Riot Response Protection Surveillance Cameras Protest Response Protesters U.S. Capitol Breach ICE ERO Criminal Charges Police Officers Elevated Alert Jan. 6 Riot Jan. 6 Insurrection Officer Harry Dunn Active Shooter Situations