Inspector Pawlak's last "crime scene" operation is a celebration of self-destruction. The celebrations include baseball bats, football bets and kebabs made from the trash.
Inspector Faber's grief over the death of his colleague Bönisch is discussed here. The police officers' personal tragedies are never an end in themselves, but drive a plot rich in twists. It is acceptable that the issue of match-fixing and money laundering has now faded into the background.