Some years ago - my copy shows 2000 - the Essex Police TV Unit produced an 11 minute video entitled 'Safe Landing' for the Essex air ambulance.
The core of this project was instruction on how 'untrained' emergency services ground personnel could/should handle landing a helicopter into a location.
It included
Landing zone requirements
Potential dangers
Hand signals to the pilot
public control and safety
All pretty basic and, it would seem, suitable for wide distribution to everyone ever likely to be placed in that position. Its short length might result in such as the emergency services watching it from time to time.... well, maybe!
There was a price for copies [between £10 and £40 depending on the number of copies] so I am not sure how wide the circulation was eventually or whether it is now available on CD.
I will enquire next week!