That does not count Police torture, which still exists. In fact, I know people, who have literally been hanged by the state on confessions extracted by suffocation through black refuse bags. Most, who receive such treatment, are from underprivileged sections of society. Law enforcement is content in the knowledge that they cannot litigate their rights and that the most they can ever get, is a poorly resourced and generally inexperienced pro deo attorney. And of course, law enforcement would generally deny all allegations of abuse because they are careful not to leave any visible injuries on the suspect.
When studying investigations, at some point during my career, we were taught on best practices. We were taught that an interview should generally be conducted by two officers, one interviewing and another recording. Best practice demands that law enforcement would have a video or audio record of such an interview, especially in serious cases. Here, interviews are often conducted by upwards of 10 law enforcement officers in a general lecture hall, each taking a turn at will when they think they have something useful to ask about. Of course, they are all on one side and the suspect is on the other. Suspects get threatened and physically abused. It is worth noting that this happens, generally, to suspects already in custody, with no legal or other help to call.
There's sometimes no regard to whether the suspect has a had a fair amount of sleep, and whether he is interviewed hungry or fed. In the end, the result is a sham justice system, which generates ostensibly correct judicial outcomes that, unbeknownst to judges and magistrates, are in fact based on evidence of torture and improper interrogation, and evidence gathering practices. We know what happened in the Thebe case, and how a suspect died under the same conditions of which I speak. Examples abound. Being a legal practitioner, I would know.
