Debtor's business affected by shooting

One of my IVA debtors is a pub Landlord.  Over the weekend a customer was shot dead in the pub.

The pub is currently closed for the police forensics, but they are suggesting it may be a week or more before it can re-open (subject to license etc).

Major problem is living for the week (she can't get the money from the till etc), but we can't help there. 

Next issue is the probable loss of the week's trading (Bank Holiday!).  It isn't covered under her insurance, but I recall that businesses affected by the riots were able to claim from somewhere.

Does anyone know if/how she could claim, and what she would need?