Fatal shooting by ICE agent in Minneapolis raises questions about officers firing at moving vehicles

The fatal shooting of a woman by a federal immigration officer in Minneapolis on Wednesday has thrust a long-running and deeply contested question back into the national spotlight: When is a law enforcement officer justified in using lethal force against someone in a moving vehicle?

The killing, captured on cellphone video, has exposed sharp divisions between federal authorities and local officials. It has also renewed scrutiny of use-of-force rules that many police departments adopted...