It should be noted that this is (obviously) not a general directive in Sweden but rather about certain types of crimes in certain poor, problematic areas where distrust of police (and other government agencies) is very high.
Strict immigration quality laws (as in, three strikes and you pay for your one way ticket home).
Fix police funding and then demand performance from them.
If there's a problematic area, put enough cops there so they pluck everybody undesirable one by one until the rest is benign and/or got the hint.
Control unemployment (we don't just want low numbers, rather evenly distributed), discourage walled settlements, try to mix people together.
Instead of providing welfare checks, make policemen/teacher jobs. Still can't find work? Try hard or get booted (if you're some kind of immigrant, of course).
The main take off is - it works until you break it. If you have a broken socity, stop complaining and fix it, it's absolutely doable.
The real problem is that this is how criminals can create a "no go" area for the police.
That is the first step to ghettos controlled by criminals. So Sweden seems to go the way of Brazil's favelas. Note that Brazil is going the other way, finally. :-(