I dunno man..... I'm a supporter of the police and all but this passage frightens me:
The legislation further allows police to seize a spring or air gun and gives the chief the authority to cancel permits and destroy seized guns.
What if someone (with connections) had a grudge against you? Lets say you have a PTW or a GBBR that you've upgraded, fixed and tuned. What then? You're then out $2000+ (what if you had real steel accessories on that PTW? A nice expensive DD rail? Real Steel Optics? etc.)
PS: Windows and blinds should be closed when handling airsoft guns but I don't think many people are as paranoid about that as I am.