In Sao Paulo, Brazil, any citizen can issue a ‘parking ticket’ to someone parked illegally in a disabled bay. The local council has introduced tickets designed to look like fines. The tickets can be printed and issued by anyone and placed on any car wrongly parked in a disabled space.

Traffic wardens already have the authority to fine anyone found parked illegally in a disabled space, but this campaign enables all residents to lend a helping hand. There is no fine associated with the ticket. Instead they simply spread awareness of the issue.

This isn’t a business or money making enterprise in its current form, but it raises a couple of interesting questions:

1. Are there other areas of public policing that could be shared by community minded citizens, to the benefit of everyone?

2. Could there be a business in co-ordinating this sort of public spirited activity?