Talking about yourself in third person is always awkward, but here I go anyway ;-)
Joachim Metz is a digital forensic investigator currently working at Hoffmann Investigations. Hoffmann Investigations mainly performs digital forensic investigations for corporations (private law).
His background is Information Communication Technology (ICT) in multiple disciplines like: system and network administration, programming, deployment, etc. and also Information Security (IS). He has been working in the field of digital forensics for several years now.
(Philosophy warning!!!) In his opinion digital forensic investigators should be transparent in both their findings and methods. The statement "the tool provided me with the evidence" just does not cut it. In his work he experienced a lot of serious errors in 'digital forensic software' and corresponding human interpretation, e.g. tools that represent the FAT access date as a date and time value and is interpreted as such. He has put a lot of effort in providing alternatives and means to verify findings by breaking open file formats and improving file recovery methods.
(Ancient history alert!!!) For him breaking open file formats dates back to Might and Magic 3 save games and recovering deleted and corrupted files under DOS using PCTOOLS.
(Marketing alert!!!) Some of his recent work are file format libraries like: libewf, libmsiecf, libnk2, libpff and libesedb and the proof-of-concept carving tool called revit, which keeps surprising him because of its versatile application even in recovering NTFS-compressed files.
The challenge he likes about the field of digital forensics is that there is a lot out there still to be discovered ;-)