The charges are aimed at recovering some of the costs of the Fire Service response given, and should not be considered a fine. They are also to act as an incentive to reduce false alarms simply by the incurred costs.
See the Hazardous Substance (Minimum Degrees of Hazard) Regulations 2001 and the Hazardous Substance (Classification) Regulations 2001. Typically these are not pyrotechnics that are retailed to the general public for purpose of celebrating the Guy Fawkes night on the 5th November. However the onus is on you to verify the pyrotechnic so ask your retailer for information.
Yes. There is no interpretation in the regulations on what constitutes a display. Entertainment of the public includes a private function (e.g. birthday) where the fireworks involve non-retail pyrotechnics. Public could be a sole person or any number thereof.
Yes, lack of ventilation extraction and smoke reservoirs in kitchen areas can cause false alarms. Building designers should consider the use of the building to prevent unwanted false alarm activations.
Children are a particularly receptive audience. They quickly and easily adapt their behaviour and influence their family. By encouraging children to be fire wise they become conduits of fire safety information into their homes.