Scrapping the Eurostar security check-in would save resources for more effective surveillance. It would also make the journey less time-consuming and more convenient for passengers. On my way to visiting my grandchildren in Brussels I have been held up twice for carrying a penknife with a blade 8 centimetres long. The regulations seem to be blind to the fact that Eurostar is not an aeroplane and cannot be hijacked.
Scrap the Eurostar security check-in, and allow passengers to board Eurostar after normal frontier control checks.