Question to the Ministry of Defence:

To ask Her Majesty’s Government what assessment they have made of whether the United Kingdom's nuclear deterrent is vulnerable to espionage as a result of insufficient maritime patrol surveillance.

The Government takes its responsibilities for maintaining a credible nuclear deterrent extremely seriously and continually conducts assessments to ensure that the required security and operational effectiveness standards are met. I am not prepared to comment on any further details as this could allow conclusions to be drawn on the UK's capabilities.