Post-Brexit, these checks require non-EU travelers to undergo facial and fingerprint registration. HS1 has warned that without intervention, this could lead to significant Eurostar delays, service reductions, and passenger limits, potentially impacting London's economy, especially before Christmas.

Khan emphasizes the importance of the Eurostar to the UK's economy and the potential for chaos if the situation is not managed. In 2022, Eurostar already experienced a 30% drop in peak capacity in London due to Brexit-induced border checks.