For the Following Potential Misstatements for Cash Payments, Identify a Necessary

Essay

For the following potential misstatements for cash payments, identify a necessary control and a test of the operational effectiveness of that control.
1.a cash payment may be made for an unauthorised purpose.
2.an invoice may be paid twice.
3.a cheque may be issued for the wrong amount.
4.a cash payment transaction may not be recorded.