[DTV]

Didn't someone say that the reporting laws in Scotland for an arrest, speculation, can land broadcasters/journos in hot water moreso than in England? So perhaps makes sense to point to a website for a little more detail but not worth opting out when there isn't a lot to go on. 

Maybe now she has been released, an opt might be wise?

Yes, contempt laws in Scotland begin from arrest rather than just applying to the court case and no other information was really given by the police other than Sturgeon had been arrested so there's little really that can be said other than background to the case. Standard reaction talking heads would be unwise as the BBC would be liable for any speculation that breached the law.