Uploaded September 2021 | Updated September 2026, 3 weeks ago
This is an audio transcript of a polygraph interview conducted by LAPD Homicide Lt. Earl Deemer with Roman Polanski, likely in early September 1969 (despite being labeled August 16 on the tape). Polanski discusses possible motives for the Tate murders and provides information about drug use and drug dealers associated with some of the victims. In particular, he mentions Sharon Tate's claim of having done 40 to 60 LSD trips, as well as her use of marijuana, which contradicts a previous statement he had made to the press. The interview also includes Polanski's negative opinion of Mama Cass and a warning to stay away from her. The polygraph was obtained by a researcher in 1994 from a police officer involved in the case.
A polygraph, also known as a lie detector test, is a machine that records several physiological responses such as blood pressure, pulse, respiration, and skin conductivity while an individual is asked a series of questions. The test is based on the theory that changes in these physiological responses can indicate when a person is being deceptive or telling the truth. The polygraph is often used in criminal investigations or job screenings, but its accuracy and reliability have been a topic of debate among experts.
The reliability of polygraphs is a controversial topic. Polygraph testing is based on the assumption that physiological changes, such as changes in heart rate, blood pressure, and breathing, are associated with lying. However, the accuracy of the polygraph has been questioned by many scientists and organizations, including the American Psychological Association, which states that "the evidence for its validity is not compelling."
While polygraphs are sometimes used in criminal investigations and other situations, their results are generally not admissible as evidence in court. Additionally, some people may be able to manipulate the results of a polygraph test through various means, such as intentionally altering their physiological responses or using countermeasures. Therefore, the use of polygraphs remains controversial and their reliability is widely debated.
#backporchtapes #truecrime #charlesmanson #romanpolanski
This is an audio transcript of a polygraph interview conducted by LAPD Homicide Lt. Earl Deemer with Roman Polanski, likely in early September 1969 (despite being labeled August 16 on the tape). Polanski discusses possible motives for the Tate murders and provides information about drug use and drug dealers associated with some of the victims. In particular, he mentions Sharon Tate's claim of having done 40 to 60 LSD trips, as well as her use of marijuana, which contradicts a previous statement he had made to the press. The interview also includes Polanski's negative opinion of Mama Cass and a warning to stay away from her. The polygraph was obtained by a researcher in 1994 from a police officer involved in the case.
A polygraph, also known as a lie detector test, is a machine that records several physiological responses such as blood pressure, pulse, respiration, and skin conductivity while an individual is asked a series of questions. The test is based on the theory that changes in these physiological responses can indicate when a person is being deceptive or telling the truth. The polygraph is often used in criminal investigations or job screenings, but its accuracy and reliability have been a topic of debate among experts.
The reliability of polygraphs is a controversial topic. Polygraph testing is based on the assumption that physiological changes, such as changes in heart rate, blood pressure, and breathing, are associated with lying. However, the accuracy of the polygraph has been questioned by many scientists and organizations, including the American Psychological Association, which states that "the evidence for its validity is not compelling."
While polygraphs are sometimes used in criminal investigations and other situations, their results are generally not admissible as evidence in court. Additionally, some people may be able to manipulate the results of a polygraph test through various means, such as intentionally altering their physiological responses or using countermeasures. Therefore, the use of polygraphs remains controversial and their reliability is widely debated.
#backporchtapes #truecrime #charlesmanson #romanpolanski
