Summary

  • The UK’s 22 October White Paper proposes a criminal offence covering conduct intended, planned or attempted to compromise subsea data or energy infrastructure, including hostile surveying before service fails.
  • The government proposes penalties of up to 14 years for intentional conduct, 10 for reckless conduct and two for gross negligence, and asks how to protect legitimate maritime, scientific and commercial activity.

The cable can still be carrying traffic while somebody maps the point where it is easiest to hurt. Britain’s proposed undersea infrastructure law wants to reach that earlier moment. The White Paper published on 22 October describes an offence covering conduct that causes a security compromise, is planned or attempted to cause one, or is likely to cause one. Its examples include mapping, surveying and positioning equipment for a later attack, or exploiting the infrastructure for covert surveillance. The absence of an outage would not close the file.

That is a larger move than replacing an antique statute’s vocabulary. The Submarine Telegraph Act 1885 talks about telegraphic communications; the government says its application to modern fibre is uncertain and that pipelines are outside it. The National Security Act 2023 has a sabotage offence, but its foreign-power link must be proved. The new proposal would cover subsea data and energy systems through a different route. Ships with crews, remotely operated craft and autonomous systems would all be within the proposed conduct framework.

The obvious headline is a tougher sentence. The more consequential line is the first one drawn on a chart. Scientific teams survey seabeds. Cable owners and repair contractors inspect routes. Merchant and fishing vessels pass them. The White Paper itself says the offence must avoid catching legitimate maritime, scientific and commercial operations. It has identified the collision but has yet to publish an evidentiary rule that a ship, investigator and court could all use to distinguish routine survey from attack preparation.

The government proposes three culpability tiers: up to 14 years’ imprisonment for intentional conduct, 10 for reckless conduct and two for gross negligence, with unlimited fines. It is also considering a higher maximum in the gravest cases. Supplementary offences could cover obstructing repairs, falsifying or failing to preserve relevant vessel and navigational data, and ignoring lawful communications from investigators. Those records matter for the main offence too. A track, a device, its timing and an operator’s purpose may tell very different stories when read together.

Jurisdiction is another live edge. The proposal would cover conduct in UK territorial waters, UK nationals or UK-flagged vessels in international waters, and some acts beyond the territorial sea affecting infrastructure connected to Britain. The White Paper acknowledges that state practice for the last category is unsettled and asks for views. A cable crosses borders while a criminal case needs a court with authority to hear it.

The consultation runs to 14 January 2027. Its best answer on the survey boundary would show what evidence turns an unexplained route into an attack preparation, who tests that classification, and what record survives scrutiny later. Otherwise the map itself starts doing the accusing.

Sources