A garnishee order, issued by a court under the code of civil procedure, requires a bank to freeze a debtor's funds and prohibits payment until further court instructions. If a creditor obtains this order due to unpaid debts, the debtor's account is suspended, and the bank must inform the debtor to prevent cheque dishonor. The process involves two parts: an initial temporary order (nisi) and a final order (absolute) following the bank's response.