Article: Under a front page headline "The Truth", the paper printed allegations provided to them that some fans picked the pockets of crushed victims, that others urinated on members of the emergency services as they tried to help and that some even assaulted a police constable "whilst he was administering the kiss of life to a patient." Despite the headline, written by Kelvin MacKenzie, the story was based on allegations either by unnamed and unattributable sources, or hearsay accounts of what named individuals had said a fact made clear to MacKenzie by Harry Arnold, the reporter who wrote the story.

Now answer this question: Who was reported to have been assaulted while trying to help a patient?
a police constable