Happens almost every week in our village with charity collection bags.
For a about a month some guys went on 'patrol' to see who was 'stealing' the bags of clothing etc. I heard there was a confrontation between these guys, and a group of Romanians. Neighbourhood watch joined in and the 'suspects' were held until police arrived. So the village rumour goes, the police told the 'gang' to leave and warned everyone else not to take the law into their own hands. Locals names were taken.
Yep, we certainly see international operations here in our little village
BTW the upshot of this is that now all charity collections in the village are done through the Parish Council with centralised pick-up in the village hall.