No, it means exactly the opposite. 'To be heard on' means is there anything else that you would like to say. In this case, is there anything else that you would like to say that will help your case; anything else that you want to bring to the attention of the court.
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Enchantedis there anything else you'd like to be heard on?Are there any other topics you would like to speak about (so that people will hear your thoughts or opinions on these topics)?