http://www.jw-media.org/beliefs/beliefsfaq.htm
before july 2002
Do you shun former members?
Those who simply cease to be involved in the faith are not shunned. In compliance with the Scriptures, however, members can be expelled for serious unchristian conduct, such as stealing, drunkenness, or adultery, it they do not repent and cease such action. Disfellowshipping does not sever family ties. Disfellowshipped members may continue to attend religious services, and it they wish, they may receive pastoral visits. They are always welcome to return to the faith. -1 Corinthians 5:1113
before juny 2003
Do you shun former members?
Those who simply leave the faith are not shunned. If, however, someone unrepentantly practices serious sins, such as drunkenness, stealing, or adultery, he will be disfellowshipped and such an individual is avoided by former fellow-worshipers. Every effort is made to help wrongdoers. But if they are unrepentant, the congregation needs to be protected from their influence. The Bible clearly directs: "Remove the wicked man from among yourselves." (1 Corinthians 5:13) What of a man who is disfellowshipped but whose wife and children are still Jehovah's Witnesses? The spiritual ties he had with his family change, but blood ties remain. The marriage relationship and normal family affections and dealings can continue. As for disfellowshipped relatives not living in the same household, Jehovah's Witnesses apply the Bible's counsel: "Quit mixing with them." (1 Corinthians 5:11) Disfellowshipped individuals may continue to attend religious services and, if they wish, they may receive spiritual counsel from the elders with a view to their being restored. They are always welcome to return to the faith if they reject the improper course of conduct for which they were disfellowshipped.
today:
Do you shun former members?
Those who become inactive in the congregation, perhaps even drifting away from association with fellow believers, are not shunned. In fact, special effort is made to reach out to them and rekindle their spiritual interest. If, however, someone unrepentantly practices serious sins, such as drunkeness, stealing or adultery, he will be disfellowshipped and such an individual is avoided by former fellow-worshipers. Every effort is made to help wrongdoers. But if they are unrepentant, the congregation needs to be protected from their influence. The Bible clearly states: 'Remove the wicked man from among yourselves.' (1 Corinthians 5:13) Those who formally say they do not want to be part of the organization any more are also avoided. What of a man who is disfellowshipped but whose wife and children are still Jehovah's Witnesses? The spiritual ties he had with his family change, but blood ties remain. The marriage relationship and normal family affections and dealings can continue. As for disfellowshipped relatives not living in the same household, Jehovah's Witnesses apply the Bible's counsel: "Quit mixing with them." (1 Corinthians 5:11) Disfellowshipped individuals may continue to attend religious services and, if they wish, they may receive spiritual counsel from the elders with a view to their being restored. They are always welcome to return to the faith if they reject the improper course of conduct for which they were disfellowshipped.