21.   Soldiers, standing shoulder-to-shoulder in a human barricade, ordered them to turn back.

22.   The clash erupted when hundreds of farmers began marching on the Assembly and police formed a human barricade with shields and helmets to block them.

23.   Thousands of police with shields and batons formed human barricades and used loudspeakers to urge the workers to go back to the park.

24.   Thousands of protesters played a cat-and-mouse game with police, forming human barricades along the road.

25.   Thousands of anti-nuclear protesters faced off thousands of riot police and formed human barricades to block the transport of radioactive waste to a storage site in northern Germany Tuesday.

26.   Within minutes, they were confronted by hundreds of protesters, some throwing bottles, and police formed a human barricade against the surging crowd.

27.   Human barricades and wooden structures have been used at strategic points across access roads to prevent the movement of logging and plantation company vehicles.

28.   In some suburban areas activists formed human barricades on roads leading to the capital, home to eight million people.

29.   But police, who had formed a human barricade around the cathdral, blocked their return time and again with teargas, an AFP photographer said.

30.   Platoons of club-wielding riot police repeatedly attacked the students, chasing them through clouds of tear gas after forming human barricades behind black armored vehicles.