ANALYSIS: The resignation of Police Scotland's Chief Constable Phil Gormley is the latest twist in a story of perpetual crisis since the force's establishment. Nick McKerrell of Glasgow Caledonian University traces the roots of the saga and warns that further problems are likely.

OPINION: As the New Year begins, yet another scandal has emerged involving potential Scottish government interference with the operation of Police Scotland. Nick McKerrell of Glasgow Caledonian University warns that the crisis in Scottish policing is a structural one - and that without an examination of those structural causes, these crises cannot be resolved.

OPINION: Police Scotland's Chief Constable, Phil Gormley, was temporarily suspended last week in more bad news for the force. Nick McKerrell of Glasgow Caledonian University looks at the institutional malaise at the heart of Police Scotland and asks if the issues of leadership and accountability are likely to be resolved.