Originally Posted by
Aus_Mal
I seem to recall being on a tour bus via Dover ferry, and having to show my passport to both UK and French immigration control. Could be mistaken though.
I know it's unlikely they'll retrofit UK airports to allow physical border control outbound, but likewise am sure this is frequently considered/suggested.
Are you sure it wasn't ferry staff?
I seem to remember Eurotunnel staff needing to collect passport data at exit when exit checks were introduced.