A police badge mounted on a plague will just make the perfect gift for the retiree. While it will always remind him of his years of service in the police, it makes a fitting tribute to see his badge raised on a plague. You can personalise it either with his name or initials along with the years of service. Engrave it with gold if affordable.
Another one of police retirement gifts is the retired flag badge and ID holder, only if not given by the department. These are gifts that will make them feel proud and honoured, at the same time, of their service. A small retired fire arm would make just one great gift to keep him in touch with his service too.
While giving police retirement gifts, it is also important to know the interests and hobbies of the retiree. He might be interested in fishing or hunting or even cooking, you never know. Get him related sets and equipments and you could have bought the best police retirement gifts.
Or why not a long trip to his favourite holiday destination? After all these long years of service, he does deserve a good holiday. So, you could get him travel vouchers or coupons and send him to beautiful place just to relax and start retiring from work. He would really appreciate this and be grateful to you for your wonderful thoughts and understanding. Meanwhile, do not forget to add a hand written note of appreciation and gratitude for his service.