The dark of the charred building is ominous in the streetlight, to stop the arsonist(s) they first need to find them...
You can do Perception (Remember Clarity!), or start with Int+Investigation (can be teamworked)
Also a note about Equipment, If you didn't Buy it yourself, or link me the scene where you got the items from someone else then you do not start with it. As most of what's on Mara and Flickerwhip's Equipment lists is from Jasper, I'll allow it this time. Please with your next post make note of Jasper handing out things.
And remember we're Ironside, if you're seen with obvious weapons things could go south pretty fast!