The criminal justice system has been set up to avoid false convictions. That is why the standard of proof is so high. To be convicted, a person’s guilt needs to be demonstrated beyond a reasonable doubt. This may mean that some people who have committed crimes are not convicted simply because the evidence cannot meet that standard, but the trade-off is that innocent people should very rarely be convicted of crimes that they did not commit.
All of this may work in theory, but in practice, we know that there are still false convictions. This has become especially true in the last few decades, with the development of DNA evidence. In fact, some people have been exonerated based on DNA evidence, even years or decades after they were originally convicted.
But if the justice system is set up to avoid this issue, why does it still happen?
Eyewitness mistakes
There are many potential reasons for a false conviction, including nefarious issues like authorities tampering with evidence. But in most cases, studies find that the biggest problem is just that eyewitnesses make mistakes. They give inaccurate testimonies, and eyewitness misidentification can sway a jury and lead to a conviction that should never have happened.
The trouble is that these witnesses are not always intentionally lying just to create a false conviction. They may honestly believe they are telling the truth, but they are simply not remembering the incident correctly. After all, human memory can change over time, and it is a lot less accurate than people assume. So an eyewitness who does believe they are telling the truth could still misidentify a suspect and cause them to be falsely convicted.
If you are facing criminal charges, it is important to understand how the justice system works, that there is a threat of a false conviction and what legal defense options you have as you navigate this complex system.