A colleague recently showed me some garments that had needle damage.
When I asked him if he discussed needle policy with his supplier, he mentioned that he did not.
Obviously needles need to be replaced at certain intervals by a sewing factory, and very often the factory does not have a good (if any real) needle policy.
However, it is still important for the factory to know, that you know about the importance of a needle policy.
It indicates that you know your business, and indicates to them that this is something you will possibly specifically look for.