LABOUR last night accused Alex Neil of breaching the ministerial code over his appointment of an official from his local SNP branch to a £12,000-a-year NHS post.

The former Health Secretary promoted Scotrail manager Phil Campbell to the vice-chair of NHS Lanarkshire last November instead of social work expert Dr Avril Osborne.

Campbell is secretary of the SNP branch in Neil's Airdrie & Shotts constituency.

Neil, who has since become Social Justice Secretary, strongly defended the appointment last week, telling the Sunday Herald that Campbell was simply the best person for the job.

Neil also said he had expected a political row over Campbell's promotion, saying: "I knew it would be controversial because the Labour Party would kick up a stink."

Labour did indeed say the appointment "stinks of cronyism and jobs for the boys".

However, despite expecting controversy, Neil did not consult the First Minister - then Alex Salmond - before making the appointment, as described in the Scottish Ministerial Code.

Section 5.1 of the Code says ministers have a duty to ensure that influence over public appointments "is not abused for partisan purposes".

Section 5.9 also states ministers "must" consult the First Minister "about any appointment which is likely to have political significance", including "local or regional appointments [which] may from time to time excite an unusual amount of public interest because of the circumstances surrounding the appointment or the background of the candidate".

Pamela Nash, the Labour MP for Airdrie & Shotts, yesterday wrote to Nicola Sturgeon asking her to investigate whether Neil broke the code, which is policed by the First Minister.

Nash wrote: "I believe that Mr Neil's failure to consult on this appointment is a breach of the ministerial code.

"I would therefore be grateful if you could investigate this matter and reply as soon as possible, detailing what action you plan to take if he has breached the code.

"The NHS is our most important public service and it cannot be left open to attacks of cronyism."

In an added dig, Nash ended her letter by referring to Sturgeon's appointment of an SNP researcher to the board of NHS Tayside when she was health secretary before Neil.

"I would be grateful if you could advise me if you consulted with the then-First Minister when you appointed SNP researcher Matthew Landsburgh to the board of NHS Tayside," Nash said.

There is no automatic sanction for breaching the ministerial code.

However if the First Ministerial decided Neil had committed a breach, it would signal a loss of confidence and possibly lead to his sacking from the cabinet.

A Scottish Government spokesman said: "We have received Ms Nash's letter and will respond in due course.

"The appointment was the confirmation of a proposed vice chair identified by the chair of NHS Lanarkshire - not a new appointment or a reappointment. As a result it was not necessary to consult the First Minister under the requirements of the Scottish Ministerial Code."