article_snippet.sent: Bear bile farming was banned in Vietnam in 1992 .
article_snippet.sent: Bear bile farming involves crude catheters jabbed repeatedly into the caged bear's abdomen and gall bladder to drain out the fluid.
article_snippet.sent: Bile farming has been banned in Vietnam since 1992.
article_snippet.sent: In 2005 4,239 captive bears were micro chipped and farmers were told farmers could keep farmers but could not extract bile from farmers.
article_snippet.sent: Until recently Korean, Japanese and Taiwanese tourists regularly visited bear farms in Halong Bay where Japanese and Taiwanese tourists would buy bile and insist on watching bile being extracted from bears to ensure bile was genuine and fresh.