This is identified as internal controls in plac eto prevent or detect the risk of misstatment. $\text{'}$

$1.($i$)$ Cash at bank

$$ Assign different people to handle, record, and reconcile cash

$$ Do monthly bank reconciliation that someone outside of cash handling conducts

$$ A two$-$person approval for large payments

$$ Restrict access to the banking system

$$ Have a regular review for unusual transactions

$($ii$)$ Cost of sales

$$ Manual inventory checks

$$ Purchase orders created electronically that require authorized approval

$$ Verifying invoices against purchase orders and the receiving report

$$ Automated systems for cost distributions

$$ Regular review of profit margins.$\text{'}$ Evaluate control risks