If you have nothing to declare (i.e., within the duty-free limits),
you may pass the Green Channel. Otherwise,
you should go through the Red Channel.
Random checks are carried out on people passing the Green Channel
so dont take your chance.
The duty-free allowance is as
1. Goods which have been obtained outside the EU or duty-free within the
200 cigarettes or 50 cigars
2 litres wine or 1 litres spirits
60cc/ml perfume or 250cc/ml toilet water
£32 worth of gifts
2. Goods obtained duty/tax paid in the EU
300 cigarette or 75 cigars
5 litres wine or 1.5 litres spirits
90cc/ml perfume or 375cc/ml toilet water
£265 worth of gifts