Here are several pages of photos of the action in France where police attacked the campaigners with loads of teargas. Several people, including a Reuters photographer, were injured by the gas grenades fired into the crowd.

On a previous occasion riot police and troops were used against a demonstartion lead by women and children.

Un reportage photo sur l'action anti OGM du 25 septembre en Vienne ici:
http://mdh.limoges.free.fr/support/valdiv/index.htm