Mexican police

When it comes to criminal justice, Mexico is better known for bribery than best practices. But police are receiving better training, and reforms now allow for open trials and presumption of innocence.

At least 43 people were killed in what is being described as the worst gun battle with drug gangs in recent memory.

MEXICO CITY — A 14-year-old Mexican girl who was taken by authorities and sent screaming to live in the United States was returned home Wednesday after…