A special master hearing evidence behind tens of thousands of lawsuits over Johnson & Johnson’s Baby Powder has urged the court to reject a key plaintiff expert’s test for asbestos, undermining claims talcum powder causes ovarian cancer.

William Longo developed his test for litigation and it doesn’t produce reliable results, retired judge Freda Wolfson said in a lengthy report to the court overseeing consolidated talc litigation. Longo’s “methodology lacks nearly all of the traditional indicia of reliability,” Judge Wolfson wrote last week, recommending the court exclude his test from evidence.

This report was produced by Legal Newsline and distributed by The Center Square as part of a content-sharing agreement. Reach editor John O’Brien at john.obrien@therecordinc.com.

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