I reassure Mr Fraser that I have discussed the matter not only with the chief constable; I have also taken the opportunity to discuss it at length with Martyn Evans, the chair of the Scottish Police Authority board, because the SPA has a crucial role in scrutinising Police Scotland operational matters.

Obviously, I take very seriously concerns that are expressed in the chamber. I do not think that Police Scotland would have the same interpretation of what is lawful or unlawful as Mr Fraser has articulated but, given that the detail of the policy is firmly located in an operational space, I will ask the chief constable or the chair of the SPA to reply directly to Mr Fraser on that point.