Police in Glarus launched a major operation after a briefcase was left abandoned on the street for several hours.
Roads were closed and traffic diverted as a robot brought in from Zurich was used to open the suspicious case.
In all around 30 officers were involved – as well as fire crews and paramedics.
The case was found to be empty.
Police now want to track down its owner.
Are there not enough foreigners in civil servant roles?
Unemployment rises slightly - but mainly seasonal
TV staff in Geneva fight against CHF 200 vote
Many street lights in Geneva broken
Geneva allows Xmas music on terraces
US governors impressed with Swiss education
