For each of these five separate cases, identify the basic control principle(s) that is violated. Recommend what the business should do for better control.
1. Chi Han records all incoming customer cash receipts for his employer and posts the customer payments to their respective accounts.
2. At Tico Company, Julia and Justine alternate lunch hours. Julia is the petty cash cashier, but if someone needs petty cash when she is at lunch, Justine fills in as cashier.
3. Nori Nozumi personally opens all the mail for Hopeville Medical Clinic and performs monthly bank reconciliations.
4. Benedict Shales prides himself on hiring quality workers who require little supervision. As office manager, Benedict allows his bookkeeper to sign checks for the business.
5. Cala Farah deposits cash receipts for Green Meadows Video once each week.