Identify which internal control procedures or principles is violated in each of following situation.

$\backslash$table$[[$Internal Control Procedure$/$Principle No$.,$Description$],[1,$Human Resource Controls$],[2,$Physical Controls$],[3,$Independent Internal Verification$],[4,$Segregation of duties$],[5,$Establishment of responsibility$],[6,$Documentation procedures$]]$

Enter the number of internal control procedure$/$principle $($instead of descriptions$)$ that is violated. If no internal control procedure is violated, enter NA$.$

Billing documents are not prenumbered.

Invoices of inventory purchases are marked "paid" when the payments are sent.

Purchase mangers authorized purchases and approved the payment.

Senior accountant performed the bank reconciliation task.

The payroll department hired a new accountant. There is no need to have background check or request for reference letters as he is vice president's relative.

Multiple cashiers share the same cash drawers register code.

All employees are required to scan their ID before entering the building.