Is a prosecutor improperly vouching for the strength of the evidence by describing a hypothetical crime in front of the jury?

Defendant also contends that the prosecutor was improperly vouching for the strength of the evidence by her description of a hypothetical crime that occurred in front of the jury. " 'Impermissible "vouching" may occur where the prosecutor places the prestige of the government behind a witness through personal assurances of the witness's veracity or suggests that information not presented to the jury supports the witness's testimony.' " (People v. Williams (1997) 16 Cal.4th 153, 257.) The prosecutor's description of a hypothetical crime that occurred in the courtroom neither placed the

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