text: 17 June 2016 Last updated at 18:05 BST
  But during a ceremony to honour the victims, one policeman refused the shake hands with the president and his prime minister.
  Interviewed on TF1 television afterwards, he said "There are too many problems in the police. We've had enough."
target: French President Francois Hollande has vowed to improve the protection of police officers, after a police couple was killed by a militant this week.