Police in Gisborne are looking for a Taser an officer lost on duty last night.
They said the Taser and holster may have become dislodged from the officer's belt clip when he attended a fireworks related incident on Waikanae beach near Peppers/Midway Surf Club.
One of a group of youths fired a firework at the officer, hitting his arm.
Police said he wasn't injured and became involved in a struggle with the youth.
They said the Taser was believed to have become detached from the officer's belt during the struggle.
A taser is a restricted weapon, and anyone illegally possessing one is breaking the law.