New Jersey altered mental status expert witnesses assess acute confusion, delirium, intoxication, and neuropsychiatric change across emergency, inpatient, and long-term care settings. They often come from neurology, emergency medicine, psychiatry, toxicology, and critical care, with experience at major systems like RWJBarnabas and Hackensack Meridian. They evaluate diagnostic workups, medication effects, and standard-of-care decision-making.