City Watch

You have served the community where you grew up, standing as its first line of defense against crime. You aren't a soldier, directing your gaze outward at possible enemies. Instead, your service to your hometown was to help police its populace, protecting the citizenry from lawbreakers and malefactors of every stripe.
Even if you're not city-born or city-bred, this background can describe your early years as a member of law enforcement. Most settlements of any size have their own constables and police forces, and even smaller communities have sheriffs and bailiffs who stand ready to protect their community.
Skill Proficiencies: Athletics, Insight
Tool Proficiencies: None
Languages: Two of your choice
Equipment: A uniform in the style of your unit and indicative of your rank, a horn with which to summon help, a set of manacles, and a pouch containing 10gp

Feature: Watcher's Eye

Your experience in enforcing the law, and dealing with lawbreakers, gives you a feel for local laws and criminals. You can easily find the local outpost of the watch or a similar organization, and just as easily pick out the dens of criminal activity in a community, although you're more likely to be welcome in the former locations rather than the latter.

Suggested Characteristics

Use the tables for the soldier background as the basis for your traits and motivations, modifying the entries when appropriate to suit your identity.
Your bond is likely associated with your fellow watch members or the watch organization itself and almost certainly concerns your community. Your ideal probably involves the fostering of peace and safety. An investigator is likely to have an ideal connected to achieving justice by successfully solving crimes.