Sami Shariff’s father said there had been a “miscarriage of justice” after his son’s attacker was jailed for just three-and-a-half years.

The 29-year-old DJ will be disabled for the rest of his life after being beaten up outside a nightclub by two men in an unprovoked attack last year.

His father, Joseph, is now seeking legal advice to launch an appeal, after prosecution laywers failed to nail Ali Adbul-Hamid on a serious assault charge.

He said: “This is a clear example of a miscarriage of justice.

“Sami’s life will not be the same again.

“I have no feelings of revenge – all I want is to make sure that other people do not fall victim to the leniency of this sentence. It doesn’t act as a deterrent.”

Mr Shariff, whose stage name is Sami Sanchez, performed at a Latin night at seOne nightclub, London Bridge, on May 3 last year, before he was attacked outside.

Inner London Crown Court heard on Friday, August 27, how Adbul-Hamid and his accomplice, Jaffar Abbas, loitered outside after arguing with him over a spilt drink.

A witness saw Mr Shariff being punched and kicked in the head, chest and stomach before the men fled.

Mr Shariff took a taxi home but later collapsed.

He was found at 10pm the next day when his best friend, Juliana Lopez, became worried after he would not answer the door.

His family said doctors at the hospital warned them he may be brain-dead, and asked them to consider turning off his life-support machine.

Through intensive therapy, he began communicating via electronic equipment, but is paralysed on his left side and cannot walk or talk.

A petition of more than 1,800 signatures demanding justice for Mr Sharif was handed to the judge this week, with about 40 supporters attending court for the sentencing.

Adbul-Hamid, 27, of Lanark Road, Maida Vale, pleaded guilty to inflicting grievous bodily harm (GBH), which carries a maximum sentence of five years.

The Crown Prosecution Service (CPS) accepted this lesser plea, rather than try him for GBH with intent – which carries a maxi-mum sentence of life imprisonment.

Concluding, Judge Chapple said: “In these circumstances I have no power or decision in the matter.

“It’s for the CPS to decide the charges.”

Both men originally fled to Iraq to avoid arrest – with police still “reviewing options” to prosecute Abbas, who is still there.

Supporters of Mr Shariff have set up the Sami Sanchez Music Foundation to help youngsters.

To get involved, visit www.thessmf.org.