The best information broker and person a city could have is here (´▽｀) Applying for Orihara Izaya (Durarara!!) with prior reserve! The application can be found at the fourth link on the sidebar.
Hello, hello Izaya Orihara! You're finally here! One of our agents could really learn a thing or two from you.
You live in the Commoner Precinct apartment 1-3. Also, your code for your credits account is 2qEEL2. Please do not hand out codes and or steal codes from people. It's not only rude but a dick move towards the government. If we find you doing such a thing Agent X will do more than beat you up.
You've requested for your run of the mill switchblade. Just like our friend, Karkat, you will receive your normal switchblade with a twist. The knife's metal blade has been traded for a silicon and plastic mixture. It isn't too hard or too soft--just perfect. You can use this switchblade any time of the day, but not in Zone 3 or 4.
Stay safe, and watch for those gosh darn vending machines.
-- Agent Y
P.S. Vending machines are all over Zone 4. I don't recommend going there, you might get hurt!