68. Whoever, not being authorized by section 5 of this Act to solemnize marriages, solemnizes or professes to solemnize in the absence of a Marriage Registrar of the district in which the ceremony takes place, a marriage between persons one or both of whom is or are a Christian or Christians, shall be punished with imprisonment which may extend to ten years, or (in lieu of a sentence of imprisonment for seven years or upwards) with transportation for a term of not less than seven years, and not exceeding ten years, and shall also be liable to fine.