For a police/hems operator to be granted night time clearance in hems mode, the CAA consider the application on its merits. Obviously with single pilot ops, the 'other' person in the left hand seat would need to be a qualified HEMS member and also the terrain over which they would be flying would come under close scrutiny before approval is granted and it is this which would prevent some operations from being cleared to function as a hems operator at night under EASA regs.
EMSR22: A night time clearance by your national CAA must/should include duplex fail safe goggles. IE: The tubes each need their own light source totally independent of each other. And in addition, the weather limits/visual refs MUST allow for total goggle failure such that they can fall back on the normal VFR limits at night. Finally, there are two zones for NVG: above and below 500'. Transit under NVG and t/o and l/o. To obtain authorisation for the latter again requires a trial period above 500' before you can apply for <500. (In the UK).
Paulosaints - ridiculous comment "NVG make no difference". Either you have forgotten to turn them on, or you are not using them properly. They TRANSFORM night ops beyond recognition.
