One example is when you have to lie to a perpetrator in order for him to confess to a crime. Say you have a suspect in mind for a murder from witness details and sketches. You know this guy is no good by any means and has a rap sheet longer than the patrol guide, so you bring him in on a warrant and try to find out the truth. He goes up to the squad and they debrief him. During the debriefing the lead detective tells the perpetrator that they have him on camera committing the act where he killed someone. The perpetrator breaks down in tears and admits to the act and cooperates in order to help lower his sentence. They make the perpetrator confess to the murder because in his mind, the evidence already exists, yet truthfully the evidence does not. The same scenario can be used and the immoral means to gain a confession could also be excessive force and brutality. The means of putting away a murderer behind bar is a great moral end. However the means that brought the confession, the lie and or physical abuse, is morally wrong in everyday society. This is just one example of how police officers use immoral means in order to get a justified and moral end.
Another example is when a police officer has a confidential