What you fail to realise is that Police Officers are not allowed to administer or permit drugs to be taken by someone in their custody. The correct procedure is to call out the on call Doctor. If in the event of a long delay in that Doctor attending and the detained person is showing signs of obvious distress, then an ambulance should be called and the detained person taken to hospital accompanied by a police officer for treatment. You would not believe the number of detained persons who try to pull the wool over the eye of detention officers about the need for drugs or medication. Not saying this in your case but the police have to follow procedure. Can you imagine the outcry if they had handed over your insulin and you had taken a massive overdose. Who do you think would get the blame ? Not you, it would have been the custody officer.