320.215.  Reimbursement of employees, expenses and equipment, state to furnish. — Employees shall be reimbursed for actual traveling and other expenses necessary to the performance of their official duties.  Investigators shall, at the expense of the state, be furnished with such vehicles, equipment, supplies, and insignia of office as the state fire marshal deems necessary, within the appropriation made therefor all of which shall remain the property of the state and be strictly accounted for by each investigator.