When the burden of proof falls on you.
D003415:Crime; D005104:Expert Testimony / Q000331:legislation & jurisprudence; D006801:Humans; D009741:Nursing Staff, Hospital / Q000331:legislation & jurisprudence*; D010344:Patient Advocacy / Q000331:legislation & jurisprudence*; D012926:Social Control, Formal; D014481:United States