The Martin case has sparked intense discussions about race, gun control and the state's "stand your ground" law, which make it legal for people to use deadly force when they feel a reasonable threat of death or serious injury.

CNN: STORY HIGHLIGHTS

"NHS organisations must make the best use of public funds, and this includes setting car parking charges at a rate which is reasonable for the communities they serve and provides appropriate concessions, " he said.

BBC: NHS hospital parking fee rises criticised