When you enter the AGA Venue and the Gala Dinner Venue, you will need to show your passport or national ID Card. 
Also, your bags and luggage will be checked and you will pass through a detector (similar to those found at an airport).

Every time you leave and re-enter the building, you will be required to go through these security checks.
Please plan to arrive 15 to 20 minutes in advance of your meeting in order to allow enough time to pass through the security checks.

Thank you for your comprehension.