Notwithstanding any law to the contrary, any municipality in this state, having contiguous to its boundaries an established county fair ground, may by ordinance duly passed, extend to such county fair grounds, the police and fire protection of said municipality and any county, to which such protection is given, shall pay the costs thereof. Said sums to be paid out of the current expense fund of said county for the protection of county property on said fair grounds.
Idaho Code § 22-209