The family of a father who died in police custody have called for a health and safety prosecution against Police Scotland.

Sheku Bayoh's relatives asked lord advocate Frank Mulholland to consider the issue during a meeting on Monday.

They have also asked for a wider public inquiry to be launched into deaths in custody.

Mr Bayoh, 31, died after being restrained by officers in Kirkcaldy, Fife, in May last year.

His death is currently being investigated by independent police watchdog, the Police Investigations Review Commissioner (PIRC).

The final report by PIRC is not expected to be submitted to the lord advocate for several months, according to Aamer Anwar, the lawyer of Mr Bayoh's family.

Mr Bayoh's partner Collette Bell, sisters Kadi Johnson, Adama Jalloh and Kosna Bayoh, mother Aminata Bayoh and brother-in-law Ade Johnson met Mr Mulholland at the Crown Office on Monday morning.

The meeting was held a day after the family laid flowers at Hayfield Road in Kirkcaldy, where Mr Bayoh died.

Mr Mulholland has already reassured the family that a fatal accident inquiry into the death will be held, regardless of any criminal proceedings.

Mr Anwar said after the meeting: "The lord advocate was told today that what is being offered to [the family] by means of a fatal accident inquiry is the barest minimum following a death in custody.

"Ultimately this case is a test of whether our system of justice is capable of holding the most powerful institution in our country, Police Scotland, to account.

"For Sheku's family there can be no compromise on this."

The family have requested the Health and Safety Executive become involved to consider a potential prosecution of Police Scotland over "restraint techniques, lack of training, and use of sprays and batons" on Mr Bayoh.

Mr Anwar said the lord advocate should be given the power by the Scottish Government to instruct the Health and Safety Executive.

He added: "The family has also asked the lord advocate with the Scottish Government to consider widening the remit of the inquiry as a public inquiry under the Inquiries Act so that it can deal with the wider concerns of deaths in custody that an FAI will not be able to do."

Mr Anwar said the family do not believe the PIRC can adequately investigate the incident as they consider the organisation to be "part of the problem".

He said the family are not "pre-judging the outcome" of the investigation and the prospect of criminal prosecutions.

Mr Anwar added "we are talking about months" in terms of the completion of PIRC's report and its submission to the lord advocate.

A spokesman for the PIRC said: "The commissioner recognises the tragic circumstances in which Sheku Bayoh died on May 3, 2015 and her investigation is committed to getting to the truth of what happened that day.

"When the PIRC conducts an investigation under the direction of the lord advocate, PIRC investigators have all the powers and privileges of a constable, and conducts an in-depth, comprehensive investigation into the circumstances.

"This is a complex and wide-ranging investigation and, as it has progressed, further lines of enquiry have emerged which have lengthened the investigative process.

"It is appropriate that all of these matters are rigorously explored.

"The commissioner continues to act on the instructions of the lord advocate and is committed to delivering a thorough, impartial and independent investigation.

"A further report of our findings will be submitted to him in due course."