Many organisations tell the public that if a grey squirrel is trapped it must be killed and cannot be released.
This is misleading.
If a grey squirrel is accidentally trapped — for example in a bird feeder, netting, or on private property — the law does not prohibit freeing it and allowing it to leave where it was found.
What the law restricts is the deliberate capture and release of grey squirrels into the wild — not the act of freeing an animal that has become unintentionally trapped.
The RSPCA confirms this distinction in its public guidance:
👉 https://www.rspca.org.uk/adviceandwelfare/wildlife/squirrels/injured