How to make freezer slow freeze poultry

[iceman31]

An idea occurred to me a few minutes ago.
I have noticed red stains around the leg bones of fresh chickens before.
I have been told that this was due to bring the temperature down to just freezing during transport, then thawing.
If you want to simulate the ice crystals developing during a slow freeze you could try freezing, partial thawing, then refreezing. I believe this will cause the effect you are looking for.

This doesn't work because if the rate of freezing is fast with each freezer attempt, small crystals will grow in the same place. Unless the crystals are big to begin with and there is partial thaw refreeze however you need a slow freeze to begin with.