Our kids nights at D&E are managed by a company called Lush Clubbing (http://www.lush-clubbing.co.uk/
So not really sure about this.
All I know is that all fridges MUST be locked, our security staff wear high vis, and all the staff are required to wear the club's staff uniform for visibilty.
Then there's the usual customer to security staff ratio, which I believe there must be extra staff on to cover this.
Might be worth getting in touch with the management team at the website above