Arson
Due to the potential for increased stock and the amount of time your business has been closed, the amount of rubbish you generate may increase.
Care should be taken when dealing with this rubbish, as accumulated rubbish outside of the building provides a potential target for arson which could damage your business.
If measures were implemented to increase security and/or reduce the threat of arson whilst your business was closed, these should be reviewed again as they may have adversely affected your fire safety measures.