Dave Plumb wrote:
I don't blame staff for not enforcing this, they're at a high enough risk
of being assaulted in that line of work without provoking it. Some simple
turnstiles would probably do the job

Exactly - this was my point in the intial post. All the staff had to
do at TCR was to extend the portable barrier a bit further.

As far as turnstiles or fixed barriers go, there may be some sort of
fire rules about them, but I'm not sure.

Patrick