Hi, thank you for using JA. I am an experienced criminal
defense practitioner and can offer some information.
A MAPP hearing comes out of the US Supreme Court
decision in Mapp v. Ohio, where a hearing is conducted to determine whether evidence should be suppressed on the ground that it was obtained as the result of an illegal search and seizure. Essentially, those lawyers believe that either the police didn't have probable cause
to search the vehicle or violated the defendant's rights in doing so. If they are successful in the MApp hearing and all the evidence that was taken is suppressed [which means excluded from evidence] then there can be no remaining evidence and the charges would be dismissed.
Usually a criminal record
is relevant to bail-whether someone should be released and whether they will come back to court, and sentencing. Some courts will allow some or all of a criminal record to be used to cast doubt on credibility if a defendant testifies. It probably isn't relevant to the motion to suppress or Mapp hearing at all. If the charges were drug charges then that sum of cash surely looks suspicious, particularly depending on whether the driver is employed or not. If the case is dismissed, it is likely he'll get his money back though.
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