Weapon carrying is not a rare event among patients seen in psychiatric emergency services, and apparently no characteristics can effectively predict which patients carry weapons. Screening for weapons would make psychiatric services sections safer for both patients and staff.To preserve the balance between patients' civil rights and public safety, an electronic sensing device might be used to alert security to the presence of a weapon carried by a patient entering an emergency room. Such devices generally are effective at sensing the types of weapons that were found in our study. Electronic screening of all patients would allow unobtrusive discovery of most weapons that patients carry.
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