Many of the buildings and rooms on campus are open-plan. Anyone can walk in. Therefore, it is important to tidy up your workspace, even if you are only leaving for a short time. This prevents unauthorised people from sending emails in your name or taking documents containing sensitive data.
During these clean desk checks it was verified if offices, cupboards, and equipment were properly locked, and that confidential information had been tidied away. Besides that the officers checked how easy it would be to follow someone into a room that requires a pass to enter.