Information collected by DAWN is widely cited by drug policy officials, who have sometimes confused drug-related episodes –
emergency department visits induced by drugs – with drug mentions. The
Wisconsin Department of Justice claimed, "In Wisconsin,
marijuana overdose visits in emergency rooms equal to
heroin or
morphine, twice as common as Valium." Common Sense for Drug Policy called this as a distortion, noting, "The federal DAWN report itself notes that reports of marijuana do not mean people are going to the hospital for a marijuana
overdose, it only means that people going to the hospital mention marijuana as a drug they use". This criticism is also not correct. DAWN has recently clarified their use of the term "drug mention" in methodology because of this erroneous claim. The data is collected by a systematic and confidential review of patients' medical records. Thus, for example, a patient who broke an arm while high on marijuana would not be included in the data. A report released by DAWN in 2002 claims that marijuana overdose alone resulted in documented deaths in Atlanta and Boston, respectively. However, there is no known record or evidence to support the existence of a case of human fatality by result of marijuana overdose. ==References==