Brain Scanning

In the future brain scanning could be a commonly used practice. It is possible that it could be affective enough to use within legal matters. If this technology does become used, it will be a great advancement that would be used greatly. This new technology would be greatly help in discovering if people were guilty of crimes. Along with everything in the world, it would have it's negative qualities as well. The human mind is a very complex and difficult thing to understand. People can have negative thoughts about something or someone, but this does not mean that they were acted upon in a negative way or followed through with. I feel that it would be next to impossible to be able to pick between the real and momentary upset thoughts that we have in our minds. I do not think we could declare the difference and i feel this could cause several false accusations about innocence people. If most of the legal system was based on such a technology it would have to 100% accurate or there would be a lot of people in jail for something they did not do. If this technology became 100% accurate, it would have great advantages within court rooms and would be better than the lie detection test that can be manipulated and may not give reliable results. We would not need a courtroom or trial because we could just scan the brain to find the truth. On the other hand, there would be a big invasion of privacy upon scanning someones brain. We would have to give up some of our own freedoms to secure the truth and safety of everyone. Would this be worth it?