The German authorities are compiling a database of human scents to track down possible violent protesters at the G8 summit in June, local media report.The method, once used by East Germany's secret police, the Stasi, involves collecting scent samples in advance from selected targets.
The scents are then passed to police equipped with sniffer dogs who can pick the individuals out amidst a crowd.
Past G8 summits have suffered serious unrest, which Germany is keen to avoid.
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