Police Interrogation

Watch a step-by-step police interrogation showing refined manipulation techniques used to extract confession. Would you resist the psychological warfare?


The most famous police

interrogation scene. Here,

however, the manipulation

techniques are reversed,

as the female suspect is

in full control. She toys

with the male police

officers with her body,

especially in the climatic moment when she crosses her legs to reveal she has no underwear.  No need for lessons to learn how to read body language. This sure is the best manipulation technique to obtain any kind of true or false confessions...  

How Police Manipulate You to Confess Crimes

Psychology of Persuasion

Everyone deserves a second chance


All characters used for our

video were drawn for the

War on Crime comic strip 

​by the Ledger Syndicate.

The strips were conceived

by Edgar J. Hoover, the 

FBI director for a public

relations exercise. 

Published between 1936-38 in 45 papers, War on Crime is a somewhat violent strip which retells the demises of famous criminals in the 1920-30s, such as, Ma Barker, Baby Face Nelson and John Dillinger, thanks to the FBI scientific methods.

​​Making of the Police Interrogation Video :

First page of the War on Crime comic strip

75% of Homicide Exonerations linked to Official Misconducts, including False Confessions

​​According to a report from the University of Michigan Law School, there were 149 people who were declared innocent or cleared of their convictions or guilty pleas in 2015. The innocents had served nearly 15 years on average for crimes they did not commit.
In 75 of the 149 exonerations, it turned out no crime had been committed, e.g. accidental death wrongly attributed to arson. In 65 cases, the defendants had pleaded guilty to crimes they didn't commit. False confessions had been obtained in 27 other exonerations. In the latter 2 groups, the convicted were either juveniles, mentally ill, intellectually disabled, or under threat. Overall, 75% of the homicide exonerations were explained by official misconduct of prosecutors or cops.

Creating False Memories is Easy, study shows

One of the most troubling aspect is that suspects often end up believing in the fabricated confession, thanks to the strength of false memories. To prove how easy it is to convince a person that s/he has committed a crime, Julia Shaw (University of Bedfordshire, UK) and Stephen Porter (university of British Columbia, Can) conducted an experience published in Psychological Science in January 2015:
Participants went through a series of 1-hour interviews over a three-week period. During the first meeting, the interviewer read two stories about the participant: one true anecdote reported by parents and one story entirely fabricated. In the latter, the participant had committed a crime (robbery, assault, etc) or suffered a major mishap (injury, loss of money, etc). The participants were asked to search their memories about the two stories and to provide additional details in the subsequent meetings. At the end of the experience, the results were quite impressive as more than two thirds of respondents actually believed to have lived the false story providing specific facts about the police officers they were supposed to have met. These details (visual, audible, olfactory, tactile ...) roamed the range of sensations expected in this type of interaction.
Why is the inception of false memories so easy? For the 2 researchers, false memories, like real memories, are reactivated by assembling scattered fragments, which have sometimes no direct connection with the story to remember. The credible fragments help to make the story probable: "what it might have looked like can turn into what it would have looked like, which, in turn, can become what it looked like," hence creating the false memories. A situation of stress facilitates the overall process by removing any possible reality checks.

Police is Expert in Psychology of Persuasion ...

It also appears that the art of persuasion of the interviewer is not neutral to obtain confessions. In 2003, two social psychologists, Eric Knowles at the University of Arkansas and Jay Linn at Widener University, formalized the approach-avoidance psychology of persuasion.  To be persuasive, one must (i) increase the appeal of a goal (the “approach”), while (ii) decreasing the resistance surrounding that goal (the “avoidance”).
In a police interrogation, after preliminary assessments, the investigator’s tactic is to accuse the suspect of the crime, suggesting how and why the crime happened, usually based on presumptions rather than physical evidence that are hard to come by at crime scenes. The detective then initiates approach toward confession, the only way to close the situation of stress and put the mind back to peace by doing the right thing. This conflicts with the suspects’ (innocent or not) desire to avoid punishment, and creates indecision.

...and applies R. Cialdini Influence Principles

For psychologist Robert Cialdini, seven principles are effective to remove avoidance barriers:

  • Liking – People tend to like and trust people who are like them, hence the most effective cops attempt to engage in casual conversations to create a non-threatening atmosphere and build a relationship based on shared interests and beliefs. The British Psychological Society (BPS) reported a study showing that confessions were “14 times more likely to occur early in an interrogation when a rapport-building approach was used. Confessions were four times more likely when interrogators struck a neutral and respectful stance. Rates of detainee disclosure were also higher when they were interrogated in comfortable settings”.

  • Authority – People respect and follow experts or leaders, hence the numerous headlines including “scientists say” or “research shows”. Business titles, impressive clothing, or even expensive, high-performing automobile are proven factors in lending credibility to individuals. For a police officer, authority is a given, and is easily abused. For example, cops routinely recommend suspects to waive their Miranda rights (to remain silent without the presence of an attorney) if they have nothing to hide. Suspects, whether innocent or not, often waive their rights as they want to be seen as cooperative and are afraid of antagonizing the police.

  • Reciprocity – People tend to return favors, hence providing free information, samples, or a positive experience incentivize people to give you something in return. The good cop strategy is based on this principle. In stress situations, many people will open up to someone offering compassion, and even go along with suggestions to ensure that the presumably nice person will continue to protect them.

  • Commitment and Consistency – People want to be both consistent and true to their word. When people commit, orally or in writing, they are likely to honor that commitment and will consistently stick to it for all subsequent related choices:  
    -- On the one hand, if a suspect agreed to engage in harmless discussions, it will be harder for him to stop talking, or start lying, when the topic turns to the crime.
    -- On the other hand, it is difficult to change people’s behaviors and attitudes, or in our case to convert a denying suspect into a confessing culprit. The best way to change attitude is to praise people for making good past decisions considering what they knew at the time and stress how the new behavior is consistent with the old ones. Accordingly, most cops will concede that the suspect is a good person, who acted under adverse circumstances, but should now confess to be consistent with a good person behavior. This “minimizing” tactic downplays the seriousness of the offence, or blame it on other people or circumstances. While it allows the suspect to save face and dignity it also provides a false sense of security more likely to lead to a false confession as shown in an experiment reported by the BPS.

  • Social Validation – People will do things that they see other people doing as they want to belong. For instance, online testimonials are very effective to show customers that people similar to them have enjoyed a product or service. Falsely pretending that accomplices have already confessed their crimes, or charged the suspect, is a trick used in the US to convince suspects that it is ok to admit their own culpability. As shown above in the Shaw/Porter experiment, these suggested wrong but credible information are extremely powerful to create false memories, especially in weaker minds in situation of stress. In comparison, police in England is not permitted to lie to suspects.

  • Unity – People share identity with groups, family being the most universal, but also based on ethnicity, geography, or other shared interests. The more an individual identifies with a group, the more powerful the unity effect is. Police interrogators often invoke the suspects’ identified values in order to coerce them to do the “right thing.”

  • Scarcity – The less there is of something, the more valuable it is, and the more difficult it is to pass on the opportunity. For example, special offers available for a "limited time only" reduce the resistance to buy. Similarly, reduced time jail in exchange for guilty plea offered for a limited time only is a classic trick in the tool kit of a prosecutor and can sound appealing even to innocent suspects. 

True or False Confessions Trump Everything 

These principles are powerful because they bypass our rational minds, appealing to our subconscious instincts.  In the Shaw/Porter experience, the interviewer encouraged the participants to search their memories while putting gentle pressure similar to the ones used in false confession cases. The experimenter included false clues like "your parents said..." (unity principle); resorted to social pressure like "when they try hard, most people are able to recover lost memories" (social validation); provided signs of encouragement like nods or smiles, or signs of disappointment such as shaking head or frowns (liking); met in an adequate set up, e.g. bookshelves suggesting the expertise of the interviewer (authority). The results were so strong that the experiment was stopped before running through all the participants.

People tend to confess more when they believe justice will prevail. But in court, confession trumps everything, even physical evidence, as it goes against common sense that an innocent person would confess to a criminal act. Still, false confessions are not uncommon and result in ruined life for innocents, real criminals free to commit more crimes, and wasted prosecution resources at the expense of society.

Alternative to Manipulation Techniques

Awareness is rising and new investigation techniques are being implemented. Canada and the UK already conducts non-accusatorial investigations, known as “Cognitive interview” and “PEACE method”, respectively, based on rapport building to get the suspect narrating as much as possible—with no suggestions made—and gather accurate information that can then be recouped. Liars have a much harder time to invent and keep track of details. Nevertheless, some deceptive practices, such as influencing to waive the Miranda rights, some form of reciprocity or other minimizing tactics, will be hard to entirely remove for the protection of the innocents. These new techniques are also likely to results in fewer confessions, which shift the burden of asserting culpability back to the court system, with all its benefit and shortcomings. 

Because power corrupts, society's demands for moral authority" 

John Adams

"Effective international police actions require the highest degree of intelligence sharing, planning and collaborative enforcement"Barack Obama

Oppressive Manipulation Techniques

DVD cover of the most famous police interrogation scene

All visuals were selected, edited, and animated by SpareTag.com from the War on Crime comic strips to create the step-by-step police interrogation:

  1. How to brainwash someone: Police interrogators are trained in the psychology of persuasion, considered brainwashing by criminal defense attorneys. 

  2. How to read body language: At first, interrogators are amicable, and feign interest in hobbies or lifestyle to learn the body language which will help to spot when the suspect is hiding something. 

  3. Everyone deserves a second chance: A guilty suspect is likely to show deceptive body language and say something like, "Everyone deserves a second chance" to transfer the guilt away from them.

  4. Robert Cialdini influence principle of "Authority": the interrogator put the suspect's name on a folder and place meaningless documents in it to imply he has a lot of evidence, expert knowledge and authority to support his confrontational accusation.
  5. Minimizing and manipulation techniques: Investigator repeats over and over the reasons he "believes" the suspect committed the crime, usually that it was a mistake or a moment of human weakness
  6. False memory can be triggered in weaker minds: by the soft hypnotic voice of the interrogator, the invasion of personal body space and the touching of the suspect to build rapport
  7. True or false confessions: sought after as it is the hardest evidence to win in court.

How to read Body Language

Watch Police Interrogation

The Man Machine Fairy Tale

Watch + read fairy tale about meaning of life at the dawn of artificial intelligence. Will mankind and machines join forces to survive and gain purpose?

Psychology of Persuasion 

​​Other posts about Conspiracy :

Read War on Crime

How Police Manipulate You to Confess Crimes

The enhanced CIA police interrogation program includes music torture since the early 2000s. It is designed to "create fear, disorient … and prolong capture shock." The Barney's theme song "I love you" on repeat for hours is apparently the most overused torture song. Can't think of how to brainwash someone in a more annoying way. That's cruel!





War on Crime