It was among broad failures in protecting the Capitol that day, according to Mr. Bolton, who called for a “cultural change” among the Capitol Police Department.
The grenades were not used “out of the belief that they could potentially cause life-altering injuries and/or death if they were misused in any way,” Mr. Bolton said.
That a police supervisor was unsure that officers could use their weapons properly raises questions about the training they receive. Mr. recommended the creation of a specially trained unit to respond to riots and other incidents of violence.
Officers would have been justified to fire the non-lethal grenades, he said.