Are these sentences correct with the given meanings:
[color=indigo]1-As standing in front of the window, I could see everything. (because I was standing in front of the window…)
[color=red]2-They shut down the factory as posing a danger to the public. (… because it was posing a danger to the public.)
[color=blue]3-They confiscated the weapon as being illegal. (They confiscated the weapon because it was illegal.)
I think “3” is correct but in it “as” does not mean “because”.