General objectives of the stage: Shangri-La is the fourth stage of Run For Your Life mission. It is clearly longer than the previous stage, forcing you to walk through the building during the manhunt for Hitman. The game will allow you this time for a bit more freedom when it comes to reaching the target point - the elevator.
Start exploring the building, learning quite quickly that its residents grow marijuana. Fortunately you do not have to worry of them, because your presence won't alert them (even if you're disguised as policeman). Follow quite linear path, stopping after reaching a fork shown on the above screen. To start with, I suggest looking into a nearby bathroom, obtaining some medicine.
Now you have to determine the way you want to avoid being caught and reach a further part of the building. A first variant is to choose a left passage. Hide behind the wall shown on the above screen and wait until policemen end conversation with junkies.
Make sure that cops are standing with their backs up to you and sneak to another area, finding valuable evidence on the way. Soon you'll reach another large area of the residential building.
The second option is to choose the right passage. In this case stop after getting to the "marijuana field" shown on the above screen.
Crossing the marijuana field might be a bit problematic. According to game suggestion you should stop from time to time, hoping that plants will hide Hitman. Unfortunately you can't count on this trick if the officer stands only few meters from you, so I suggest not to hurry and to keep an eye on opponents' actions. You can also reach the opposite side of the field disguised as a Chicago policeman (hide your identity in a critical situation.
After passing the marijuana field, turn left and stop at the place where you'll encounter two more cops (screen above). Do not lean out but wait until they start to move. Follow them, eventually reaching a second large area of the residential building.