It's a total load of horse shit. The state is refusing to provide disclosure. I think the story is that there is 'just so much' footage they need to hire an outside firm to catalogue it. There is no timeline for when that work will be completed.

Only applies to the United States of America. DC is occupied territory. Interesting to read 11.3 - 11.11 in the military code. Those protesters to the foreign occupation may be detained. If they had fought back or committed a crime against one of the occupiers, then they could be punished according to the laws of the occupiers including capital punishment.