Police Scotland has ruled out any further investigation into the finances of the campaign for Scottish independence in the 2014 referendum after allegations that more than £1.5 million was unaccounted for.
Officers had been assessing information relating to Yes Scotland Ltd and its former chief executive Blair Jenkins after complaints were made earlier this year.
The organisation handed its full accounts to police in July following claims about money recorded in its historic accounts.
Police Scotland has now concluded that there is nothing that warrants further investigation.
A spokesperson said: “We received information which was assessed and nothing was identified which would warrant further investigation.”
The complaint followed allegations that more than £1.5 million recorded as income by Yes Scotland could not be accounted for in later financial records.
Campaigner David Henry, whose previous concerns about SNP finances contributed to the investigation which became Operation Branchform, had raised concerns about what he described as anomalies in the accounts.
Yes Scotland rejected the allegations and insisted that all of the money it received was accounted for.
Questions had also been raised about whether former SNP chief executive Peter Murrell had access to or influence over Yes Scotland finances.
Murrell was jailed for five years and three months earlier this year after admitting embezzling more than £400,000 from the SNP.
Yes Scotland and the SNP have repeatedly stressed that the referendum campaign was a separate organisation from the party.
Solicitor Aamer Anwar, representing former Yes Scotland chief executive Blair Jenkins, said Police Scotland’s cybercrime and fraud unit had now concluded its assessment.
He said police had not identified criminality and there would be no further investigation.
Mr Anwar said the original allegations concerning £1.5 million were based on a “very basic misunderstanding of accounts”.
He added: “What followed was a desperate attempt to link Peter Murrell’s criminal conduct to the financial affairs of Yes Scotland Ltd.
“Mr Jenkins is grateful to Police Scotland but is sorry they were forced to waste valuable resources and time on such spurious and unfounded allegations.”
Yes Scotland was launched under former first minister Alex Salmond ahead of the 2014 independence referendum and brought together the SNP and other organisations and individuals supporting a Yes vote.
The organisation has not been active since the referendum.
The claims emerged during renewed scrutiny of political finances following the conclusion of Operation Branchform, the long-running Police Scotland investigation which ultimately led to Murrell’s conviction.