Here is the full list of all 26 Autobahn Police Simulator achievements.
Achieve 9. rank
Hooted 100 times in a shift
Detain 100 persons without reason
Collect 100000 monetary fees
Achieve 5. rank
Drive 500 km
Drive 1000 km
Complete a big accident mission perfectly
Use radio 100 times correctly.
Drive 100 km
Reach shift number 100
Complete 50 shifts
Complete a mission to remove objects from highway perfectly
Complete a traffic control for a truck perfectly
He has a knife!
Succed a perfect nightshift
Achieve 1. rank
Take down a suspect in less than 30 seconds
Making 50 crashes which lead to cancelation a mission
Take down a suspect
Complete a traffic control for an automobile perfectly
Drive 40 km
Drive at 200 km/h without an accident for more than 10 seconds
Complete an accident mission perfectly
Succed a perfect dayshift
Drive 5 km