Why should interrogators avoid making promises of leniency?

Interrogators should avoid making promises of leniency because doing so can taint a confession and lead to false admissions. When a suspect is offered the prospect of leniency in exchange for a confession, it creates a powerful incentive that can distort their decision-making process. The suspect may feel compelled to provide a false confession in the hope of receiving the promised leniency, regardless of their actual involvement in the crime.

This not only undermines the integrity of the confession but also raises significant legal and ethical concerns. Courts are often hesitant to admit confessions that were obtained through coercion or undue influence, particularly if the promise of leniency was not fulfilled. As a result, confessions obtained under such circumstances may be inadmissible in court, leading to diminished trust in the interrogation process and potentially allowing the real perpetrator to go free.

The integrity of the investigative process relies heavily on obtaining truthful and reliable information. Promising leniency can severely compromise that integrity, making it a risky approach for interrogators.