Hello,
Just out of sheer curiosity, is this task a university assignment or is it meant to raise awareness among key constituents in New Zealand's agriculture and farming community (i.e., written on behalf of some lobbyist group)? Also, how soon do you need the task completed by? If you peruse through my portfolio samples, you'll notice a file entitled "Decline of Bees." I believe that this writing style is what you're expecting to see in the NIHL report. Of course, British English will be adhered to throughout.
My background in technical and academic writing should prove adequate for your project. So that you're aware, I'm open to requests for sample work. Simply send me a message and I'll attach files reflective of my style, sophistication, and finesse; leaving no doubt as to who is best fit for your project. I ask that all my clients create a milestone for the full project value before any work commences. Hopefully, you'll see no problem in obliging.
I look forward to hearing from you. Thank you for your time.
Kind Regards,
James