Holzer's endorsement of psychics in
ghost hunting was criticized in an article for the
Journal for the Society for Psychical Research which "cast considerable doubt on the objectivity and reliability of his work as a whole." Holzer was a proponent of
psychic archaeology, which has been widely criticized as
pseudoscience. His book
Patterns of Destiny from 1975 appeared as a noticeable prop in the movie
Flatliners, standing next to the framed photograph of Julia Roberts character's dead father. Skeptical investigator
Joe Nickell has written that Holzer did not provide verification for some of his claims and he credulously accepted
spirit photographs, anecdotal reports, and other doubtful evidence. Nickell also wrote that the mediums Holzer endorsed, Ethel Meyers and
Sybil Leek, offered "unsubstantiated, even unverifiable claims, or information that can be gleaned from research sources or from knowledgeable persons by “
cold reading” (an artful method of fishing for information)." Fellow ghost hunter
Peter Underwood wrote an obituary for Holzer in
The Guardian, in which he disputed Holzer's claim (made in his 1979 book
Murder in Amityville) that the house on Ocean Avenue in Amityville was built on the site of a
Shinnecock burial ground. Holzer's daughter, Alexandra Holzer, wrote a 2008 book titled
Growing Up Haunted, based on her life with her father and his paranormal quest. The book was optioned by
Vance Entertainment to be developed as a potential feature film.
Travel Channel began a TV series in 2019,
The Holzer Files, that returns current ghost hunters to some of Hans Holzer's documented cases. ==Bibliography==