Key legal question
Whether evidence derived from a wiretap of another suspect could be used against the respondent under Art. 9 BÜPF.
Extracted holding
The complaint did not show a legal error in the cantonal court's assessment that the wiretap incidental findings and the further evidence obtained through them were not usable against the respondent.
Extracted reasoning
The interception concerned a person-specific incidental finding; without prior approval under Art. 9(2) BÜPF it could not be used against the respondent. The Federal Court found no sufficient substantiation that the remaining evidence alone would have led to the later investigative results.