The word "fisc" refers to the treasury or public finances of a government. It is often used to describe the money and resources that a government collects and manages for the benefit of its citizens.
According to Carr, so - called «legal advisors» do the job of vetting surveillance applications even before they get into FISC judges» hands. (lawyerist.com)
Comey, according to the memo, signed off on three FISA applications when it pursued the warrant to surveil Page in FISC (Foreign Intelligence Surveillance Court) during his tenure as FBI director. (vox.com)
By post add # 3.50 and order from FISC Giles Lane, Canterbury CT2 7NA (faith.org.uk)