Oliver Diederichsen

=Oliver Diederichsen= Oliver Diederichsen is the author of Stasi Secret Service Tools and Impressionstechnik (English: Impressioning). Diederichsen has won the German championship in key impressioning four times, earning him the title "Meister" in the European locksport community. He is a professional 'safe cracker' based in Hamburg, Germany.

Competitions
• German Champion – Impressioning 2019 : Opened 4 cylinders in 1120 seconds. Location: c-base in Berlin, Germany. May 30, 2019. • German Champion – Impressioning 2016 : Opened 4 cylinders in 1119 seconds. Location: Wendt Expo in Bergheim, Germany. April 16, 2016. • German Champion – Impressioning 2009 • German Champion – Impressioning 2005