In a BBC radio interview on the day of the launch, Kevin Williamson, author of "Drugs and the Party line", said that there was "no scientific basis to the claim", citing an earlier study of 2200 people published in Cancer Epidemiological Biomarkers and Prevention that had found "that the association of these cancers with marijuana, even long-term or heavy use, is not strong and may be below practically detectable limits", asking the charity's representative to cite the research that supported the charity's claim. When he declined to do so, Williamson accused the charity of "putting out bogus information" for "headline grabbing". On the same day, online journalist Keelan Balderson accused the charity of peddling "a long debunked myth". He claimed that it was not the first such incident, citing an earlier BLF statement that "3 joints are equal to 20 cigarettes", taken from the BLF’s 2002 "Smoking Gun?" report. David Nutt criticised the Foundation for "scaremongering". Peter Reynolds, leader of the political party Cannabis Law Reform, described the report as a "dangerously irresponsible mix of conjecture, extremist opinion and scaremongering".