What episode "Only Fools and Horses" are we watching here?

@DefendTruth That anarchist should have been arrested immediately. For attempting to provoke the horse to bolt and topple its rider or inflict injury in the crowd nearby. These anarchists used to throw tacks, nails, and marbles in front of horses to injure and maim the animals or riders. Someone needs to punch the snot out of that wicked creature not take photographs.

Normal people have to pay quite a bit of money for this same entertainment.

That could be abuse of an officer as horses and dogs are typically considered members of the forces they serve.