Ease off KENNYR - if FJJP follows standard guidelines and uses an accepted security eraser like the ones listed below the data is essentially unrecoverable.
After this has been done special labs with dedicated equipment like a Class 1000 clean room where the drive can be disassembled and the drive mechanics and platters tinkered with MAY be able to recover SOME fragments of data. I doubt whether the small offchance of finding your address and and banking details are worth that sort of expenditure. Strictly for Government spooks and big-time industrial espionage where even a tiny code fragment may add something to the big picture.
A typical quote from the web:
Level 2: Government Wipe Disk Erasure
(Minimum acceptable Sanitization Level for Government IT Assets)
This level demands the disk to be erased using a software product specifically designed for multiple-pass sanitized erasure and meeting CIO sanitizing standards (e.g., U.S. Department of Defense 5220.22M Cleaning and Sanitizing standard). Disk sanitizing includes securely erasing the media, writing multiple ones and zeros across the surface, sanitizing each sector, verifying sanitization and generating a report.
Government Wipe Disk Erasure is the preferred approach as it:
sets a minimum baseline of sanitizing IT assets that fulfills statutory obligations under Section 30 of the Freedom of Information and Protection of Privacy Act (FOIPP Act) to protect personal information;
provides a high level of assurance that information stored on media is unrecoverable by any means;
saves government a significant amount in disposal fees;
provides more useable equipment for schools and disposal sales; and
is environmentally responsible.
The three software tools endorsed by the CIO as meeting the government standards for government wipe disk erasure are:
East-Tec DiskSanitizer Government version,
RCMP DSX, and
Norton Utilities 2002 with Norton WipeInfo government wipe option.