By definition, a check is a bill of exchange drawn on a bank and payable on demand. It is a written order on a bank, purporting to be drawn against a deposit of funds for the payment of all events, of a sum of money to a certain person therein named or to his order or to cash and payable on demand. Unlike a promissory note, a check is not a mere undertaking to pay an amount of money. It is an order addressed to a bank and partakes of a representation that the drawer has funds on deposit against which the check is drawn, sufficient to ensure payment upon its presentation to the bank. There is therefore an element of certainty or assurance that the instrument will be paid upon presentation. For this reason, checks have become widely accepted as a medium of payment in trade and commerce. Although not legal tender, checks have come to be perceived as convenient substitutes for currency in commercial and financial transactions. The basis or foundation of such perception is confidence. If such confidence is shaken, the usefulness of checks as currency substitutes would be greatly diminished or may become nil. Any practice therefore tending to destroy that confidence should be deterred for the proliferation of worthless checks can only create havoc in trade circles and the banking community.
Lifted from Lozano vs Martinez