Scotland’s Catholic bishops have hit out at “insidious” attempts to bar a politician from party leadership because of her Christian beliefs.

The bishops were also troubled “by the increasing prevalence of political parties removing the right of conscience from their parliamentarians on votes involving contentious moral issues”, they said in a statement.

They made their remarks amid the furore that followed the decision by committed Christian Kate Forbes to run as a candidate to replace Nicola Sturgeon as First Minister of the Scottish National Party.