While auditing the financial statements of Petty Corporation, the certified public accounting firm of Trueblue and Smith discovered that its client's legal expense account was abnormally high. Further investigation of the records indicated the following:

Since the beginning of the year, several disbursements totaling $15,000 had been made to the law firm of Swindle, Fox, and Kreip.

Swindle, Fox, and Kreip were not Petty Corporation attorneys.

A review of the canceled checks showed that they had been written and approved by Mary Boghas, the cash disbursements clerk.

Boghas's other duties included performing the end-of-month bank reconciliation.

Subsequent investigation revealed that Swindle, Fox, and Kreip are representing Mary Boghas in an unrelated embezzlement case in which she is the defendant. The checks had been written in payment of her personal legal fees.

Required:

a. What control procedures could Petty Corporation have employed to prevent this unauthorized use of cash? Classify each control procedure in accordance with the Committee of Sponsoring Organizations (COSO) framework (authorization, segregation of functions, supervision, etc.).

b. Comment on the ethical issues in this case.

Explain with proper references to justify