When a district attorney becomes for any reason unable to perform his duties, the Governor shall appoint an acting district attorney to serve during the period of disability. An acting district attorney has all the power, authority and duties of the regular district attorney. He shall take the oath of office prescribed for the regular district attorney, and shall receive the same compensation as the regular district attorney. (1967, c. 1049, s. 1; 1973, c. 47, s. 2.)