QUOTE (nemo @ Thu, 2 Oct 2008 - 16:28)
The guidelines provide that laser devices should not be operated through glass, but no reference is made to any other 'window' materials ie polycarb, perspex, etc.
And bear in mind that even if the scammers' non-compliance with the guidelines could be proven, this would not necessarily represent a cast iron get out of jail free card anyway..
I believe plexi
glass is perspex.