A police officer has been filmed striking a woman with his baton and spraying her and another person in the face with tear gas. The interior minister has announced an inquiry, while police unions have played down the affair. They say the officer had been bitten and that events that took place before the filming of the video, which was posted on YouTube, support his actions. But Mediapart has now obtained a second video showing what had occurred earlier and which raises doubts about the police version of the incident. Louise Fessard reports.