Ice soldier shields, used by the Authorities' ice soldiers, are tall, transparent, and bulletproof.

Soldiers dropped down from the cables, clad in icy blue armor and carrying tall translucent shields. As the first touched down on the black ice, they spread out, planting their shields in front of them in the ice. ... The translucent shields planted in the ice deflected the crude spears and knives. Undeterred, Davian was the first to drive a spear over a soldier’s shield. It tore a hole through the soldier’s icy blue armor, causing the soldier to stumble back from the shield.

– Fallen Nation: Downfall