No it was brought up specifically to not hunt them.
Although I've another friend who took a job in a deer park once upon a time pre ban, he had some good deer dogs and managed to break them mostly to them, with collars and much shouting etc. They would not chase when in his presence or his wives, but other wise couldn't really be trusted.
That's a very different proposition to what the OP wants to do,I don't think it would be that different to stockbreaking.
But expecting an adult dog that knows the score to leave them alone off lead,sometimes in cover far away from its owner,I