Well as an ex-copper, I can say that the officer in that vid made a complete pigs ear of that lol. There is an offence there, along the lines of;
Pedal cycling on a road in a dangerous manner is an offence under the Road Traffic Act 1988, as amended by the 1991 Traffic Act.
Section 28(2 I think) of the act, says that a person is regarded as riding dangerously if (and only if), the way the person is riding falls way below what would be expected of a careful cyclist, and it would be obvious to a careful cyclist that the manner of riding in that way could be dangerous.
The term "dangerous" refers to danger either of injury to any person (including the rider) or of damage to any property.
Section 29 of the Road Traffic Act 1988, as amended by the Road Traffic Act 1991, makes it an offence for a person to ride a pedal cycle on a road without due care and attention or reasonable consideration.
So under this act, he could have been issued a non-endorsable (£30, may be £60 now, not sure) ticket. He had no grounds to ask for his driving documents as he can't be given points and you don't need a driving licence/insurance etc for a push bike, but he was correct in asking for the guys details for the ticket. If he refuses to give them, then there is a power of arrest as the Officer cannot issue the ticket. Should he have given the officer his details and then refused the ticket, then that's his own lookout because the officer will still submit his copy to the central ticket office and it will obviously go unpaid. Then it will double etc etc.
Had the officer known the law properly then it would have been a different outcome, but it was funny