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A new award named in honour of the crime writer William McIlvanney has been won by author Chris Brookmyre.

The McIlvanney Prize - previously known as the Scottish Crime Book of the year - was presented at the Bloody Scotland festival in Stirling.

Brookmyre took the £1,000 prize for his novel Black Widow.

The other short-listed authors were Doug Johnston, Val McDermid and ES Thomson.

Judges described Brookmyre's novel as being "like watching Olympic diving", adding: "Just when you think the plot can't twist again, it takes a new turn. Even the twists have twists."

William Mcilvanney, who died last year, is regarded by many as the founder of tartan noir, a particularly Scottish style of gritty crime writing.

His brother, renowned sports journalist Hugh McIlvanney, presented Brookmyre with the inaugural award.