Authorities are investigating if money has been transferred from Switzerland to Hamas.
The probe pre-dates the Hamas attack on Israel, according to the Federal Attorney General, Stefan Blättler.
The investigation is made more difficult as Hamas has not been classed as a terrorist group by the government. If it had been, the process would be easier.
Bern says it is examining if Hamas should be. Switzerland does consider ISIS and Al-Qaeda terrorists.
Despite the lack of an official labelling of terrorist – the prosecutor does believe a conviction is possible.
But he also laments lack of staff at the Federal Police Office which is also hampering the investigation.
Gov Newsom will be in Davos
Young people's mental health under new pressure
More passengers, fewer flights at Geneva
Switzerland may bring in transit fee
Northern lights visible in Switzerland
New flu virus circulating
