As Billywizz says :
All companies who are on the Beeb's approved list should have got a copy of this "Alert - Aerial Filming - helicopter Incidents"
It was issued by The Director, Occupational Risk Management.
It has been issued because Beeb crews have been involved in 3 serious heli accidents, all with LTE apparantly as a contributory factor, and gives guidelines on What To Look For in your choice of filming pilot.
They also include FODCOM 1/2004 on LTE, and advise Their People to give the Operator a copy of this alert plus the FODCOM at the first planning meeting for any job.