The headquarters of Firstbank located at the Central Business District, Abuja, had been sealed up by the FCT High Court Enforcement Unit over failure to comply with a garnishee order.   A garnishee order is one of the options open to a judgment creditor to enforce a judgment that has been made in his favour.       It is a common way of enforcing a judgment debt and is solely used to enforce monetary judgments against a debtor to recover money.   The News Agency of Nigeria (NAN) reports that officials of the FCT High Court