The seven-year-old brown donkey mare had overgrown hooves, severe rain scald, lice and worms.
Just days from death, Shae was very lame, thin and weak when she was rescued.
It was recovered in Co Donegal at the weekend and the ISPCA said it is preparing a file for submission to the DPP.
The charity has warned it is continuing to encounter widespread equine welfare issues despite the winter weather being mild.
Four other donkeys were rescued in Co Sligo and Co Kildare.
ISPCA inspector Brendan Hughes said the hooves of the Kildare donkeys had been cut back with a saw or angle grinder and they had not received proper farrier treatment.
All the donkeys are currently recovering in the National Animal Centre.