Re: "...defence against laser..."
"First marketing approach was sheets of film installed in the aircraft windows just like window tinting is installed in cars."
The local oiks lase cars, cyclists and residential windows in addition to aircraft (their usual method of getting away is to duck into a pub when the helicopter shows up)
When they hit my lounge window about 30 degrees off axis the entire pane (1.2m square) went bright green and illuminated the room whilst preventing anything being seen outside. Apparently this is down to microcracking in the glass. Having experienced it I can see why it'd be hellishly distracting to a pilot even if he doesn't cop it directly in the eyeball. (I've caught that too, It hurt like hell and at least one other driver crashed into parked cars when he got struck).
I've been sorely tempted to liberate a cutting laser and use it to return the favour.