Is requisitioned an adjective or noun?

"Requisitioned" is the past participle of the verb "to requisition". It can function as both an adjective and a verb.

As an adjective:

* Example: "The requisitioned supplies were delivered on time." (Describing the supplies)

As a verb:

* Example: "The army requisitioned all available vehicles." (Describing the action of the army)

In your sentence, "requisitioned" likely functions as an adjective, describing the supplies.