Some interesting comments.
We do fly VFR at night, safely, and on a regular basis. Just because the UK dosn't do it, it dosn't mean it's not safe.
We will be introducing NVG's in the future as an "aid" for night missions but our minimums will not change (minimum 5kms vis with 1000ft cloud base). We currently fly a twin with 2 pilots, all IFR intruments (but not IFR certified) with 2 GPS's (1 moving map) These flights are to known helipads only.
NVG's when used with proper training will enhance safety.
US EMS safety?
-Change the weather minimums for night
-Introduce contracts for each area
-minimum eqiupment levels and training for crew incase of inadvertant IMC
-NVG's with proper training
-an EMS specific CRM training course (not just for flight crew, but management, despatchers, etc)
-a national risk management programe for all EMS operators
-making sure that all decisions to fly or not, rest solely with the PIC, based on current weather, aircraft, crew, etc.
I'm sure some of the EMS pilots on this site can add more.
Fly safe.
BM