Case Vignette: Video Surveillance to Detect Munchausen Syndrome by Proxy. Dr. Doright, a pediatrician, is troubled by the case of a 2-year-old child who has experienced an unusual number of hospital admissions and extensive invasive medical work-ups without clear findings of illness or pathology. Dr. Doright suspects Munchausen syndrome by proxy and recalls a recent article by Hall and his colleagues describing the use of covert video monitoring to detect this insidious form of child abuse. Doright wonders whether the benefits of such an approach outweigh the ethical costs.Munchausen syndrome by proxy (MSBP) is a diagnosis of the late 20th century. It was first described in 1977 by Roy Meadow; the two cases he reported were the poisoning of a child through salt ingestion and the adulteration of urine samples to simulate urinary tract infections. Meadow emphasized the behavior of the mother as the unique feature of the cases: Both mothers appeared to enjoy the attention of the physicians, in effect assuming a sick role by proxy to establish a gratifying, if fabricated, relationship with the physicians. Since Meadow's initial report, the label of MSBP has been applied to a broad range of situations, from the overeager request by parents for consultation with specialists to frank attempts at infanticide by means of poisoning or smothering ). The syndrome has generated widespread attention in the pediatric literature-a search of the MEDLINE database for the term Munchausen's by proxy during the years 1977-1999 yielded over 330 articles-and the discussion of the syndrome has moved into the popular culture as well, with news programs and Internet sites devoted to taking positions for or against the validity and contemporary uses of the syndrome.The case presented earlier describes the fictional Dr. Doright as suspecting MSBP in a 2-year-old child and being tempted to use covert video surveillance (CVS) to evaluate his suspicion. The answer to Dr. Doright's quandary is both simple and complicated. The simple part of the answer is that if he reasonably suspects that there is harm occurring to this child, then he has a clear duty to take action to protect the child from harm. The complicated part of the answer is how Dr. Doright should go about evaluating his suspicions, what threshold he should use before he involves the state child protection services (CPS), and how we pediatricians ought to characterize MSBP. In the first half of this essay, I examine the use of CVS in the arti-206 THE FORUM Downloaded by [Laurentian University] at 05