The father of a 15-year-old boy wrongly arrested on suspicion of sexual assault has complained to a national policing watchdog.

It comes after the Mail revealed how Joshua Stevens was arrested in what appeared to be a case of mistaken identity.

He was arrested at his family home in Kyffin Avenue, east Hull, in connection with an alleged attack on a 14-year-old girl and held in a cell overnight before being released without charge.

His parents, who were in Lancashire at the time about to go on holiday from Manchester Airport, subsequently claimed a senior officer investigating their complaint admitted the force had "messed up".

The force publicly apologised for the incident in a statement read out at a full meeting of Hull City Council a month later.

But an internal inquiry was launched by the force's professional standards branch which has revealed, in a letter to Joshua's parents, an officer breached the Police and Criminal Evidence Act 1984 by not allowing Joshua to see either of his parents.

However, the letter does not apologise for this and Joshua's father, Alan Stevens, says he has referred the matter to the Independent Police Complaints Commission (IPCC).

Mr Stevens says he is not happy with the findings of the internal inquiry.

He said: "There are still questions that have gone unanswered. I still feel the force have not accepted something, somewhere went wrong in the actual arrest stages.

"They have admitted an officer breached the Police and Criminal Evidence Act, but that is it. They have said he breached it, but not what the repercussions of that are.

"I am not happy with the outcome, so I have passed on all the details to the IPCC and hopefully we will get more answers."