A website of a Canadian law firm has the following references about extortion:
In Canada, the 2008 version of the Criminal Code prohibits extortion as set out at ยง346(1):
"Every one commits extortion who, without reasonable justification or excuse and with intent to obtain anything, by threats, accusations, menaces or violence induces or attempts to induce any person, whether or not he is the person threatened, accused or menaced or to whom violence is shown, to do anything or cause anything to be done."
In R v Davis, Chief Justice lamer of Canada's Supreme Court wrote, in 1999:
"Extortion criminalizes intimidation and interference with freedom of choice. It punishes those who, through threats, accusations, menaces, or violence induce or attempt to induce their victims into doing anything or causing anything to be done. Threats, accusations, menaces and violence clearly intimidate. When threats are coupled with demands, there is an inducement to accede to the demands. This interferes with the victim's freedom of choice, as the victim may be coerced into doing something he or she would otherwise have chosen not to do."
Does the act, or the threat, of shunning, or forcing JW members to shun, fall under those references (I know U.S. members disagree, but looking for Commonwealth thought)?