The Federal Court has slammed Geneva prosecutors over the use of DNA sampling, calling the practice excessive.
Judges in Lausanne overturned a decision to collect a genetic profile from a man accused of threatening family members, ruling the measure was disproportionate.
The court found no evidence linking the suspect to offences beyond the domestic setting.
The ruling follows a similar case in January and signals concern over repeated use of DNA testing.
Geneva authorities must now delete the profiles from the national database.
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