CHARACTER CREATION AND GENERAL INFORMATION
Before everyone gets too deep with character creation, an important consideration can make the difference in the rate that XP is awarded.
Some encounters here rely on your ability to talk to people and not let things escalate to combat. Do this and you will get more XP. Don't do this, and you will level more slowly because you wont get any story awards.
As police officers, you must deal with people effectively.
Its important to realize that the campaign backgrounds give you boons when interacting with people from various walks of life, and people living in specific districts in the city.
These boons are not huge, but they do lay a foundation for future success.
Its very natural for players to optimize their characters for whatever their specialty is, but you may benefit from a group that is not only combat savvy, but also able to find clues, solve crimes, question suspects, tell people what they want to hear, etc.
I'm not going to force anyone's hand on how to create their characters.
However these considerations may not be obvious since you don't know what is in store for you :)