...
A cop [apparently in securing the entry] allows a guy and another cop to go in.
That's actually more interesting to me and a nice moment to have on film, if you watch the full footage, you'll see Brennan come out from behind the cop in the door and pethaps sheepishly point out Norman and then secure himself back behind the same officer. All three men then get summoned toward the doors but BRW gets left on the steps, Jarman is the one we see going in I think.
As for Scarf Lady, well either she has a long white purse or a newspaper in her hands IMO.