The number of police officers has increased from 17,423 to 20,292, and the state funding of the Swedish police has been raised with SEK 3.4 billion between 2006 and 2010.
But this increase in resources has not become visible in crime statistics, in some cases the numbers has become worse.
For example, the proportion of financial crimes that has led to prosecution has fallen from 30 per cent to 7 per cent. This shows research by the newspaper Dagens Nyheter.
Jerzy Sarnecki, professor of criminology at the Stockholm University, is critical.
"If you push out many new police officers in a short time, it might look lovely from a political viewpoint, but you loose in police efficiency. You can't easily integrate a large onrush of new police officers," he says.
The Minister for Justice, Beatrice Ask, agree that one explanation may be that young police officers may not really have had time to get establish in the force.
But she also refers to the National Council for Crime Prevention's latest survey about how Swedes both feel more secure and have more confidence in the legal system. But crime statistics still speak for itself: the police have not become better at solving crimes.
"There are certainly differences between different police precincts. There are those who are more successful than others - and the rest needs to learn from them."