In Commissioner of Police of the Metropolis v Police Medical Appeal Board and David Walther [2013] EWHC 1203 (Admin) the Court gave further guidance on the assessment of police injury awards where an underlying degenerative condition has been affected by an injury on duty. The Court concluded that an approach based on acceleration or aggravation is not appropriate. If, at the time when the question is referred to the Selected Medical Practitioner there is a disablement which is permanent, and if the duty injury caused or substantially contributed to that disablement at that time, the right to receive an injury award arises.