German police are considering the use of a Shazam-like app for identifying neo-Nazi rock music, Der Spiegel reports. The app would identify far-right bands and their songs, apparently sparing police resources and speeding up investigations as they tackle extremist gatherings (and online radio stations, the article suggests). Nazism is illegal in Germany, as is racist hate speech. However, this app is unlikely to enter into use if legal authorities decide it’s a form of acoustic surveillance, which it plainly is.

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