Scotland's first female chief constable Norma Graham is set to retire in August after spending 34 years in the police force.
Mrs Graham, who started her career with Lothian and Borders Police in 1978, was appointed Chief Constable of Fife Constabulary in July 2008.
During the early part of her career she under took a number of uniformed and specialist roles including head of the force drug squad.
In February this year Mrs Graham was slightly injured after her Audi Quattro was involved in a collision with a Renault Clio near Fife Police HQ in Glenrothes.
The 49-year-old was taken to hospital before being discharged hours later.
A Crown Office spokesman said: "We can confirm that the procurator fiscal has received a report concerning a 49-year-old woman in connection with an incident on 7 February 2012. The report remains under the consideration of the procurator fiscal."
Mrs Graham was appointed assistant chief constable in Central Scotland Police in 2002 and later moved to Fife as deputy chief constable and was awarded the Queen’s Police Medal for Services to Policing in 2008.
She said: “It has been an absolute honour to serve the communities of Fife as Chief Constable for the last four years and a privilege to lead the dedicated and hard working officers and police staff of Fife Constabulary who over the last seven years have been instrumental in almost halving crime in the Kingdom - a reduction of 49%."
She added: “I am incredibly proud of the way my people have achieved the force vision of Taking Policing Closer to the Community and for the exceptional performance delivered in recent years. It is the same officers and staff who will continue to deliver for local communities regardless of police reform. The future of policing in Fife remains in the very best hands.”
The move comes just months before Scotland is expected to begin operating as a single police force.
A spokesman for Fife Constabulary said Mrs Graham's decision to retire was a personal one and not related to the accident or Scotland's plans to have a single police force.