A recent case from the Dallas Court of Appeals (Woodland vs State) discusses the use of prior convictions in “he said/she said” sexual assault cases. First, what is a “he said/she said” sexual assault case? It’s when the main evidence in a case is the complaining witness testifies, and so does the defendant. We are going to skip the issue of if a defendant should or should not testify in right now.
Can prior convictions be used against a defendant in sexual assault cases? The answer is, probably if the prior convictions are germane to the new offense. So a DWI might not be admitted, but a case regarding sexual assault or sexual misconduct can be. There is a general rule that prior convictions may not be used to show “character conformity”, that is, that the defendant is guilty because he is a criminal. But, in sexual assault cases there is a special provision, 38.37 of the Code of Criminal Procedure, that allows prior convictions to be used against a defendant.
Here is a quote from the court-