To ask the Scottish Executive how many cases of alleged killing, nest destruction and disturbance of hen harriers have been recorded and how many (a) prosecutions and (b) convictions for such offences there have been in each of the last 10 years and whether the national police operation, Artemis, has achieved a reduction in the incidence of hen harrier persecution since its launch in March 2004. Prosecutions and convictionsfor offences against hen harriers cannot be identified separately from other wildbirds from the data held centrally.