Much of the time, if a police officer tells you something, it will be the truth, or at least something they believe to be true. However, there are circumstances when an officer will knowingly say something that is not true.
The law allows police officers to stray from the truth when questioning suspects. In fact, this technique is often taught in police training courses.
An investigative technique
The reason an officer may outright lie to a person they are questioning, or twist the truth slightly, is that they know it can help them get answers. In many cases, it can even lead to a confession, sometimes from people who did not commit the crime they confess to.
Picture this scenario. Sheryl is being held in custody after she and her friends are arrested on suspicion of shoplifting. She is determined to deny the crime, perhaps because she did not do it, or perhaps because she knows the police have no evidence against her. Even so, she is unsettled and scared.
After a few hours, an officer enters and tells the questioning officer that one of the other teens has confessed and explained the role each person, including Sheryl, played.
On hearing this, Sheryl may believe it is better to start talking. The problem is that none of her friends actually said anything to the police. They all remained silent, just like she was doing. The officer lied to her to pressure her into speaking.
Why legal guidance matters
Anything you say during questioning may be used as evidence against you. That is why it is often best to invoke your right to remain silent. Still, when the police use tactics such as lying, it can be difficult to hold firm. Seeking legal guidance early can help you understand your rights and what is in your best interests.