250 + 85 +15 pounds?
The magistrate would seem to be suffering from some kind of dementia to accept the kitten story.
If the convict was indeed `playing with kittens', then the illumination of the helicopter would have been fleeting. Through double glazing, and likely a net curtain if it's anything like a normal hotel, the intensity and narrowness of the beam should have been much reduced. If it's an old single-glazed pane, then the irregularities in the glass should have a similar effect.
I don't think it would have taken perry mason to make the case that he was shooting his laser at the police helicopter through an open window.
But even beyond that: a 250 pound fine and 85 pounds for costs? How much does it cost to lock him up for 24 hours to investigate? How much was he (or the legal aid system) charged by his solicitor? What did it cost to have the helicopter crew's vision checked?