Saddle bum said:
People who take photographs at the scene of an accident may not all be ghouls or badly motivated. They could be recording evidence that could be useful to the injured party. Police have no power to order any photos to be deleted.
From the link in the OP, and I quote:
"....but what really got me mad was this guy who walks over, gets his camera out, takes a photo of the poor sod on the floor and walks off smiling...."
Hardly the actions of a good samaritan helping the victim?
If the family or police are made aware of someone publishing the images, and the family complains, then yes, the police do have powers to seize the images / storage equipment.
S1 Malicious Communications Act 1988, or S127 Communications Act 2003.
What made you think the police had no power to intervene?