Previous research and popular conceptualizations of suicide have posited that many suicides are the result of impulsive, "on a whim" decisions. However, recent research demonstrates that most suicides are not attempted impulsively, and in fact involve a plan. Legally, suicide has historically been considered to be a superseding intervening cause of death that exonerates other parties from liability, but currently there are two general exceptions to this view. Specifically, another party may be found responsible for a suicide if that party either caused the suicide or failed in its duty to prevent the suicide from occurring. Both of these exceptions assume that the resulting suicide was foreseeable. Given that recent research has indicated that most suicides are planned, and thereby foreseeable to a certain extent under many circumstances, this article discusses issues of foreseeability as they pertain to litigation involving third party liability for the suicide of university students, prison inmates, and mental health patients. The authors contend that the surest way for universities, prison staff, and mental health practitioners to avoid being held liable for a suicide is to appropriately assess for suicidal intent.Suicide is the third leading cause of death for people aged 15 to 24 and the 11 th leading cause of death overall (Centers for Disease Control [CDC], 2004). Approximately 30,000 people die by suicide every year in the U.S. Moreover, four times that many people are hospitalized due to injuries sustained while attempting suicide (CDC, 2004). For the purposes of this paper we will use Silverman and colleagues ' (Silverman, Berman, Sanddal, O'Carroll, & Joiner, 2007) definition of a "suicide attempt," which is "a self-inflicted, potentially injurious behavior with a nonfatal outcome for which there is evidence (either explicit or implicit) of intent to die." Suicide is thus a serious mental health issue and public health problem. In the wake of a suicide, loved ones are often left looking for answers. When family members or friends feel something more should have been done for the decedent, they may ultimately try to settle things in a court of law. In fact, the most common type of lawsuit brought against psychiatrists is in regard to patient suicide (Simon, 2002). Furthermore, records from the American Psychological Association's Insurance Trust indicate that of claims closed by 1990, patient suicide was the second most costly claim for psychiatrists and psychologists insured by the company (Bongar, Maris, Berman, & Litman, 1998). As our society has become more litigious, the number of malpractice suits filed against therapists has risen dramatically and will likely continue to rise (Berman, 1986).Although the causes of suicide are complex, they are not mysterious, and in fact are becoming better understood thanks to decades of scientific research. One comprehensive (Van Orden, et al., 2008). According to this theory three proximal, jointly necessary, and sufficient causes must be present befo...