This must be the boldest enforcement operation. Street Ops, as they are known, involve a group of immigration officers in full immigration uniform trying to spot illegal immigrants amongst in busy streets. In this episode we follow two Street Ops. The first at North Greenwich Tube Station, where a man is stopped and questioned but then wriggles free and runs. He’s caught but a passerby gets involved, there’s a scuffle and lots of shouting and threats. The other operation at Stratford Station picks up a number of illegal workers on their way into work. These operations are very successful for UKBA as they always get results.