A psychic detective is a person who purports to investigate crimes using paranormal psychic abilities. Claimed techniques and abilities have included postcognition (paranormal perception of the past), psychometry (information psychically gained from objects), telepathy, dowsing, clairvoyance, and remote viewing. In murder cases, psychic detectives may purport to be in communication with the spirits of the murder victims.

Individuals claiming psychic abilities have stated they have helped police departments to solve crimes, however, there is a lack of police corroboration of their claims. Many police departments around the world have released official statements saying that they do not regard psychics as credible or useful on cases.

Many prominent police cases, often involving missing persons, have received the attention of alleged psychics. In November 2004, purported psychic Sylvia Browne told the mother of kidnapping victim Amanda Berry, who had disappeared 19 months earlier: "She's not alive, honey." Browne also claimed to have had a vision of Berry's jacket in the garbage with "DNA on it". Berry's mother died two years later believing that her daughter had been killed; Berry was found alive in May 2013 having been a kidnapping victim of Ariel Castro along with Michelle Knight and Gina DeJesus. After Berry was found alive, Browne received criticism for the false declaration that Berry was dead. Browne also became involved in the case of Shawn Hornbeck, which received the attention of psychics after the eleven-year-old went missing on 6 October 2002. Browne appeared on The Montel Williams Show and provided the parents of Shawn Hornbeck a detailed description of the abductor and where Hornbeck could be found. Browne responded "No" when asked if he was still alive. When Hornbeck was found alive more than four years later, few of the details given by Browne were correct. Shawn Hornbeck's father, Craig Akers, has stated that Browne's declaration was "one of the hardest things that we've ever had to hear", and that her misinformation diverted investigators wasting precious police time.

When Washington, D.C. intern Chandra Levy went missing on 1 May 2001, psychics from around the world provided tips suggesting that her body would be found in places such as the basement of a Smithsonian storage building, in the Potomac River, and buried in the Nevada desert among many other possible locations. Each tip led nowhere. A little more than a year after her disappearance, Levy's body was accidentally discovered by a man walking his dog in a remote section of Rock Creek Park.

Following the disappearance of Elizabeth Smart on 5 June 2002, the police received as many as 9,000 tips from psychics (and others crediting visions and dreams as their source). Responding to these tips took "many police hours", according to Salt Lake City Police Chief Lieutenant Chris Burbank. Yet, Elizabeth Smart's father, Ed Smart, concluded that: "the family didn't get any valuable information from psychics". Smart was located by observant witnesses who recognized her abductor from a police photograph. No psychic was ever credited with finding Elizabeth Smart.

In the case of the Long Island serial killer, the psychic said the body would be found in a shallow grave, near water and a sign with a G in it would be nearby. Despite the vagueness of this claim (the body was not in a shallow grave, water is everywhere in Long Island, and no sign with a G was nearby) the New York Post stated that the "Psychic Nailed it!". Describing the case, skeptic and author Benjamin Radford wrote: "more surprising than the psychic's failure is the fact that this information was described as an amazing success on over 70,000 websites without anyone realizing that she was completely wrong".

A body was located in the US by psychic Annette Martin. Dennis Prado, a retired US paratrooper, had gone missing from his apartment and police had been unable to locate his whereabouts. With no further leads, the chief investigating officer, Fernando Realyvasquez, a sergeant with the Pacifica (California) Police, contacted psychic detective Annette Martin. Prado had lived near a large forest, some 2000 square miles. Martin was given a map, she circled a small spot on the map, about the size of two city blocks. She said that Prado had struggled for breath, had died, and his body would be there within the indicated area. She described the path he took, and where the body would be found. Although the area had been searched before and Prado had not been found, a search and rescue officer initiated a new search with the help of a search dog, as Martin suggested "A search dog is going to find him." They found the body covered with dirt at the location, as Martin had indicated. While the body had deteriorated, there was no evidence that he had been attacked and it is thought that he had likely died of natural causes, as she also indicated. However, when Joe Nickell, a columnist for Skeptical Inquirer magazine, was shown tapes of Martin at work, he stated he was "underwhelmed". Regarding the Prado case, he noted that "What she did was very shrewdly ask all kinds of questions of that police officer, who helped her even further and told her all kinds of things. It's probably perfectly sincere, not an act. But it's just the facility of a highly imaginative and emotional person and doesn't mean anything scientifically".

In August 2010, Aboriginal elder Cheryl Carroll-Lagerwey claimed to have seen the location of a missing child, Kiesha Abrahams, in her dream. The missing child's disappearance was being investigated by police. She took them to a location where a dead body was found, however it was of an adult woman and not the body of the child.