Write cheques only to a Named Person or Business that is to receive the payment - and not to
"al Portador" (to bearer).

To ensure that a cheque can only be deposited to the account of the person or business to which it is made, write "A Abonar en Cuenta" (to be credited to the account of) before the name of the recipient, or cross the front of the cheque with two parallel lines.

Writing a cheque without funds in the bank is illegal.