Page 8 of this FBI Situation Report reads in part, "(U//LES) According to law enforcement partners, some members of identified groups that attended the 6 January events had planned to use specific radio frequencies for their communication. This information was shared with DC’s Office of Unified Communications to program some handheld radios, which were given to US Capitol Police and the Metropolitan Police Department, for monitoring. For additional information related to this topic and tactic please see FBI product titled "Domestic Violent Extremists’ Use of Amateur HAM Radios for Communication and Other Pre-Operational Planning" (17 January; SIR-00340433389)."