A special mailbox for children to flag abuses has been set up at a Paris primary school, a first in the French capital as part of nationwide effort to encourage more victims of sexual violence to speak up.

A new campaign in France allows young children to flag abusive attacks by simply dropping letters in easily accessible mailboxes across the country, for experts to assess.

The move comes in the wake of child abuse accusations involving a prominent French political expert. The #MeTooInceste hashtag overwhelmed French social media in just a few days. A police officer and head of the association Les Papillons ("Butterflies") fighting against child abuse, he published a book in 2017 to tell his story. Boyet said some of the written notes have led to legal action, including for alleged sexual abuse. The debate about France's response to child abuse within families broke out earlier this month amid accusations involving top political expert Olivier Duhamel.