A DEWSBURY man failed to persuade judges to overturn his violence convictions.
Zulfiqar Hussain, 21, of Ravens Walk, claimed his conviction was wrong because a Muslim witness at his trial swore to tell the truth on the New Testament and not the Koran.
The Appeal Court in London was told the woman witness was menstruating at the time of the York Crown Court trial and so, under Muslim custom, was forbidden to touch the Islamic holy book.
Hussain was convicted of inflicting actual bodily harm, robbery and wounding.
He was sentenced to 30 months in custody.
In written submissions to the Appeal Court Hussain said the convictions were "unsafe" and should be quashed.
But Lord Justice Hooper said the trial judge had asked the woman if she regarded the New Testament as "binding on her conscience" - as he was required to do - and she said she did.
Lord Justice Hooper added: "The judge obtained an answer to the appropriate question he asked the witness.
"There was no unfairness and no unsafety in the convictions," he concluded.