The local police...

... needed more serious arms to cope with the invasion of Brits for the British Fair weekend. Perhaps he´s saying "I´m a Nikon man myself".

In actual fact, the handing over to Spain of the island (in 1802) was re-enacted today with costumed "soldiers", pipe band and musket-bearers. It only threatened to get ugly when the crowd were jostling for position to take photos. This gun quietened things down by being fired in a salvo to mark the end of proceedings; my ears are still ringing and my hair is full of ash.