I was comgin out of Marks & Spencer's a couple of weeks ago when the security guy confronted a young man (27 ish) polsih /czech possibly due to accent,and the man unwittingly was escorted out around 4pm time. I saw the guy walk up to Surbiton station and met a younger girl on one the benches by the roundabout. Later while I was shopping in Waitrose this same girl was at the drink section stuffing 3 cans of beer into her shoulder bag. I called the security guy attention, but she was laready gone.