563.10  RULES OF EVIDENCE.
   (a)   In any case in which it is necessary to prove that a place is a brothel, evidence as to the reputation of such place and as to the reputation of the persons who inhabit or frequent it is admissible on the question of whether such place is or is not a brothel.
   (b)   In any case in which it is necessary to prove that a person is a prostitute, evidence as to the reputation of such person is admissible on the question of whether such person is or is not a prostitute.
   (c)   In any prosecution for a violation of Sections 563.07 to 563.09, proof of a prior conviction of the accused of any such offense or substantially equivalent offense is admissible in support of the charge.
   (d)   The prohibition contained in Ohio R.C. 2317.02(D) against testimony by a husband or wife concerning communications between them does not apply, and the accused’s spouse may testify concerning any such communication in any of the following cases:
      (1)   When the husband or wife is charged with a violation of Section 563.07 and the spouse testifying was the prostitute involved in the offense or the person who used the offender’s premises to engage in sexual activity for hire;
      (2)   When the husband or wife is charged with a violation of Section 563.08 or Section 563.09.
(ORC 2907.26)