Malmgren is well versed in the investigation because his company Romab investigating incursions against Logica, Svartholm Warg were convicted of.

– If this judgment stands up, it becomes difficult to conduct brottsuttredningar where you only have evidence. It will require other types of supporting evidence such as chat logs. We are faced with a bad situation when it comes to crime on the internet.

In theory, the approach could be used in cyber crimes like file sharing and child pornography crimes to escape punishment.

– It is clear that one can imagine a scenario where people rigs a computer in this way in order to have the opposition. But it’s hard to argue it in a credible way, says Daniel Westman, a researcher in legal informatics.