OP title is a lie.
Countries that rank lower than Switzerland in these statistics:
Murder: Norway, Slovenia, Japan, Austria, Iceland
Rape: Ireland, Italy, Denmark, Czech Republic, Spain, Denmark, Poland, Slovenia, Portugal, Slovakia, Hungary, Greece, Canada, Japan
Robbery: Germany, Estonia, Ireland, Austria, New Zealand, Poland, Scotland, Czech Republic, Israel, Norway, Greece, Hungary, Finland, Slovakia, Slovenia, Iceland, South Korea, Australia, Japan
Assault: Italy, Slovenia, Northern Ireland, Greece, Norway, Austria, Slovakia, New Zealand, Japan, Estonia, Poland
Burglary: Slovenia, Northern Ireland, United States, Israel, Canada, Ireland, Luxembourg, Czech Republic, France, Portugal, Scotland, Netherlands, Spain, Greece, Hungary, Finland, Poland, Slovakia, Italy, South Korea, Japan, Estonia
Vehicle Theft: Austria, Germany, Japan, Luxembourg
Sources:
http://www.civitas.org.uk/crime/crime_stats_oecdjan2012.pdf
http://www.unodc.org/unodc/en/data-and-analysis/statistics/crime.html
Switzerland has an assault rate more than 2x higher than the US.
4.2% vs 1.5% (percentage of population reporting being assaulted in 2011)
http://www.oecdbetterlifeindex.org/topics/safety/