A young mum whose son was cruelly abused at the hands of his father is fighting to have the law changed so all child cruelty convictions always result in jail time.

Wishing only to be known as Sophie, she has started an on line petition, which, in spite of only being started two days ago, already has over six hundred signatures.

Sophie told Nub News: " I want to change the threshold in the law. No one else should have to go through this trauma. "

Sophie's ex husband was convicted of child cruelty but received a sentence of 120 hours community service.

She said: " My aim in the petition is to change the threshold in the law where child cruelty cases in the future get custody sentences - not community services, so if this ever happens to anyone else.. they get the justice they deserve. We want to take it to parliament. I will fight to get what's right."

You can sign the petition and read about Sophie and her son by clicking here: the Change Org website