The family of Asad Khan walked out of Bradford Coroner’s Court during the fifth pre-inquest review into their son's death.
The 11-year-old was found hanging by his mother on 28 September last year after she forced her way into his locked bedroom on Tile Street.
It is believed they left the inquest because the coroner refused to consider evidence the family believe to be vital, claiming that it is “speculative” and not directly relevant to the schoolboy’s state of mind.
The family wanted it to be heard that Asad had told someone at the mosque that he was being bullied, that he was seen to be scared at school and would always look behind himself.
Coroner Martin Fleming has previously dismissed calls from the family to step down, as they had allegedly “lost faith” in him.

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