Another excerpt from the Rampart City Travel Guide 2012:
This reputation is bore out by crime statistics, which rate the Trenches consistently as one of the most dangerous neighborhoods in the country. Property crimes are prevalent in the area, making it advisable to keep a tight grasp of your purse or wallet. Much of the crime turns violent after the sun goes down. Visitors to Rampart City are advised not to travel alone in the Trenches under any circumstances--especially female visitors.
When visiting the city it is advisable to pass through the old tenements of the Trenches as quickly as possible to avoid becoming another of the crime statistics. Of course for those who enjoy living dangerously, there is a vibrant nightlife in a number of underground clubs. Be warned, though, that your night out could be interrupted by a police raid or gang war.
U is for Underground: The Legend of the Sewer Rat