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.
Candidates in Sunday’s presidential election have been accused of exploiting the attack politically.
The demonstrators were carrying placards saying “don’t touch my police officer”, a twist on a well-known French anti-racism slogan.
One placard also said “enough police officers killed and burned”, referring not only to Mr Jugele’s death but also a firebomb attack on a police car carrying four officers by suspected drug dealers in a poor suburb of Paris last October.
Two of the officers were seriously wounded in the attack.
Police officers have also been hurt in recent protests over allegations of police brutality.
Last month three officers were injured in protests after a Chinese man was shot dead by officers. In February protesters attacked a police station amid widespread anger over the alleged rape of a young black man by French police.
Originally from the Loire Valley region in central France, he had been serving in the capital since 2014, French daily Liberation writes (in French).
On 13 November 2015, he was deployed to secure the area around the Bataclan concert hall after the IS attack, Le Parisien writes (in French).
When the venue reopened last November with a concert by Sting, Mr Jugelé was there again, telling the US’s People magazine: “I’m happy to be here… We’re here tonight as witnesses. Here to defend our civic values. This concert’s to celebrate life. To say no to terrorists.”
He was in a civil partnership and did not have children, reports say.