Careers: Law Enforcement Career

1. Snitch
2. Desk Jockey
3. Traffic Cop
4. Patrol Officer
5. Lieutenant

After level 5 your Sim can branch out to either forensic or special agent, see below:

Forensic:

6. Wiretap Reader
7. Crime Scene Technician
8. Sketch Artist
9. 3D Crime Scene Modeler
10. DNA Suspect Reconstruction Simulator

Special Agent:

6. Vice Squad
7. Undercover Specialist
8. Special Agent
9. Triple Agent
10. International Super Spy