More than 100 wives and partners of police are protesting in Paris against attacks on police following the killing of an officer on the Champs Elysees.
The Angry Police Wives group is marching through the city two days after Xavier Jugele was shot twice in the head by criminal Karim Cheurfi.
Two other officers were wounded before Cheurfi was shot dead.
The killer had spoken about wanting to kill police but had no apparent link to Islamist radicalism, prosecutors said.
A note defending so-called Islamic State (IS) was found near his body.