This is the Revell (Germany) 1/72 Eurocopter SA365 Dauphin 2 (Kit # 04467), modified to the AS365 N1 configuration used by my local constabulary, the Maryland State Police.
Biggest construction challenge was an extended and re-contoured nose, accomplished with the help of a Monogram 1/48 Mosquito slipper tank from the spares box, and lots of Testors white putty and sanding. I added fixed main gear fairings from styrene sheet (replacing the kit's retractable gear wells & doors), a medevac interior with gurney and assorted equipment, and scratchbuilt external details like the rescue hoist, nose FLIR mounting and the searchlight under the rear fuselage.
All decals were laid out in MS Paint using assorted carefully-tweaked online images, then sized and printed in Open Office on my HP inkjet printer. Body colors were custom mixes of Tamiya acrylics carefully color-matched to the printed surrounds for the light-colored markings. [Resulting colors are probably not 100% accurate, but close enough for me, and actually match photos of the real things pretty well.]
Probably the most complex decal scheme I've tried to date, but I think it came out OK. Hope you rotorheads enjoy the photos.