I am told that the Territorial Sea Act sets baselines and that within 12 nautical miles is regarded as onshore. [Official Report, Second Delegated Legislation Committee, 4 June 2018, c. 8.]
Letter of correction from Claire Perry:
An error has been identified in my response to the hon. Member for Southampton, Test (Dr Whitehead) in Second Delegated Legislation Committee on 4 June.
The correct response should have been:
I am told that the Territorial Sea Act sets baselines and that within those baselines is regarded as onshore.