The Chaos Computer Club, a renowned and popular club of hackers and privacy advocates, decided to let the minister taste some of his own medicine by replicating the fingerprint of the minister and publishing that fingerprint in their magazine.

The fingerprint was available as a print in the magazine and on transparency slide ready to be put on the fingers of the readers of it. The sample was apparently taken from a glass that Schäuble was drinking at a panel discussion in Berlin.

The club also published a step by step instruction on how they managed to replicate the fingerprints. The process itself requires only a handful of common materials, a computer and laser printer, nothing that can’t be acquired in a regular tools store.