asked Her Majesty's Government:

What assessment they have made of the financial and legal liabilities that would arise from ratification of Protocol V to the United Nations Convention on Certain Conventional Weapons. [HL1342]

There is no retrospective liability. Potential future liability is unquantifiable. Discussions among the government departments involved are ongoing in order to work out arrangements for managing this potential future liability. In the mean time, we follow the principles enshrined in Protocol V.