It was years ago. The last I heard some elders had cards when visiting prisons or jails.
February 1989 pages 3-4 Our Identification as Jehovah's Witnesses As ministers of the good news, we are known publicly as Jehovahs Witnesses. Our voluntary participation in the field serviceis motivated by love of God and neighbor. It is not carried on at the insistence of any man or organization but is according to our God-given commission to preach the "good news" and make disciples. (Matt. 24:14; 28:19, 20) Therefore, publishers do well to avoid representing themselves as agents or representatives of the Watchtower Bible and Tract Society of New York, Inc., or any other corporation used by "the faithful and discreet slave" to advance Kingdom interests.Matt. 24:45-47.
In case of an accident or an emergency or if problems are encountered while working trailer parks, apartments, or certain other territory, publishers may need some form of personal identification beyond giving their name along with a brief Scriptural explanation of the nature of our religious work. If questioned, or when asked for credentials, baptized publishers may use the identification card (S-65) signed by the presiding overseer, which shows one is preaching the good news of the Kingdom in association with the local congregation named on the card.
A supply of identification cards (S-65), which may be issued to baptized publishers when there is a need, will be included with the annual shipment of congregation forms. If any publishers use a personal name card in connection with their field service activities, they should not print thereon that they are representatives of the Watchtower Society.
