Whats hide...2

As to the "benefit" you put the whole case at stake and qualifies in what must be one of the dumbest cops made in police history.

Penalty value for protecting criminals are fined up to one year in prison,
  it is roughly 6 months to 4 years.
  In terms of participation in such activity, it is in Brb Chapter 23, section 2 clause:
"Whoever, with intent to commit or encourage crimes,
   1. received or money or anything else that payment of a crime or to cover the costs incurred in performing a crime, or
  2. acquire, manufacture, leaves, receiving, storing, transporting, compile or take other similar post with something that is particularly likely to be used as an aid in a crime,
   In the cases outlined notably sentenced for preparation of the crime, if he is not guilty of a completed crime or attempt.
In cases where it is specially indicated convicted of conspiracy to commit crimes. By conspiracy is meant that someone in consultation with the other decides on the act or someone seeking to incite another or undertakes or offers to execute it.
Punishment for preparation or conspiracy shall be determined under the highest and may be below the lowest limit applicable to the completed offense. Greater punishment than imprisonment for two years may be determined only if prison for eight years or more may follow the completed offense. If the danger of the crime might be fulfilled was minor, shall not be penalized. Act (2001: 348). "


  So even if Ib Johansen had the intent to promote the crime in this case murder, it would have been possible, desirable and appropriate to provide a hefty penalty discount to Ib Johansen.
  He was able to get 6 months he was sentenced to a district court ... or even lower
  Given that the local klantaschlerna not managed to solve the murder, but that it was thanks to Ib Johansen had the conscience and morality to tell the truth ... in the end.

  So for what?
  Probably none at all ... probably none at all.