Patent ID: 7849781

Claim:
A barrier for placement on a supporting surface, the barrier comprising: a freestanding base assembly comprising a front wall extending in a substantially upward direction relative to the supporting surface, the front wall having an upper edge remote from the supporting surface; a bracket mechanically coupled to the front wall and comprising a first channel, the first channel positioned below the upper edge of the front wall a side channel formed at an angle relative to the first channel and extending upward beyond the upper edge of the front wall; and an upper wall comprising at least a portion that is substantially transparent and ballistic resistant, the upper wall having a lower edge, at least a portion of the lower edge received in the first channel and a second portion of the upper wall received in the side channel, wherein the upper wall extends upward from the first channel, the lower edge of the upper wall is positioned below the upper edge of the front wall, and a portion of the upper wall overlaps with the front wall, and further wherein the upper wall is movable relative to the first channel and removable from the base assembly by movement of the upper wall away from the first channel.