WW has given some good answers. Take them to the bank.
I don't understand why a hunter would not field dress a deer immediately. Could there be legitimate reasons? None that I know of. I can think of reasons not to field dress a deer at the kill site, but not to deliver a deer to the processor that hasn't been field dressed.
A butcher about 2 miles from my house told me last year that occasionally someone brings a deer in without field dressing it, and he refuses to take them. He also told me 90% of the hunters don't field dress their deer properly. I had a hard time believing that so I stopped by his shop one Saturday last year. True -- butchers (this one, at least) rarely see a good field dressing job. As people brought their deer in, he had me explaining to them how to properly field dress their deer.
In the 20 minutes I was there, I didn't see any ungutted deer, but I saw several deer with their organs inside the rib cage still intact; several deer with the sex organs still in the pelvis, and one deer with his hip joints exposed clear to the ball and socket, allowing dirt to contaminate the meat.
Field dressing isn't that hard, and I think it's easier and cleaner (and even less bloody) to do a good job than to do a bad job. You don't need hatchets, saws, or anything else other than a good sharp knife.
When the Everyday Hunter
isn't hunting, he's thinking about hunting, talking about hunting, dreaming about hunting, writing about hunting, or wishing he were hunting.