Sam Hill has worked for Dr Lee Chang for several years in the administration of Dr Changs medical practice. Sam demonstrates a loyalty that is rare among employees. He hasn't taken a holiday in the last three years. One of Sam's primary duties at the medical office is to open the mail and list the cheques received. He also takes cash from patients when they leave. At times it is so hectic that Sam doesn't bother with giving patients a receipt for the cash paid on their accounts. He assures them he will see to it that they receive the proper credit. When the traffic is slow in the office Sam offers to help Mary post the payments to the patients' accounts receivable. She is always happy to receive his help, because he is a very conscientious worker.

Review the internal control environment in this medical office situation by reference to five principles of internal control. (5 Marks)

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