How do I get past the lasers?

In Detroit, there is a storage area behind a level 5 security lock. Inside is a set of lasers guarding what looks like a bunch of stuff. If I trigger the lasers, it sets off a deadly gas that will kill me within a few seconds. How do I get past this part?enter image description here


Right behind those green barrels on the inside is the keypad for controlling the lasers.


The switch is to your right. The keycode can be found the safe in Seurat's apartment, up the opposite fire escape.

If you like, the codes are:

1904 (door) 6542 (laser)

You can find a list of codes here.