This is an anti-fraud measure pure and simply. Also a policy against a loss of staff business recovery type situation. Often a person has to leave the office f

This is an anti-fraud measure pure and simply. Also a policy against a loss of staff business recovery type situation. Often a person has to leave the office for a period of time for others to have the opportunity to discover the crime. The enforced absence prevents ongoing cover ups. Also, having a person leave their position for a period of time forces cross training between staff. If a person can't be gone for a 1 week holiday, the company is going to be fucked if that person gets hit by a bus one day.