I Am Not a Guilty

How can I prove that I am not a guilty? The so called law systems aren't perfect, They are not reliable on their duty There are lots of things left undetect. Who can prove that I am not a guilty? The witnesses are given can be wrong I can't make them believe my honesty They won't listen to me as I am not strong. The so called law takes aside the power, I can cry and say, I am not a guilty I might be given sentence for a year There is no place for integrity. I might be hanged for false reason, If I am dead, then how can I get justice, Everyone knows that I am a bad person, I know better I don't deserve injustice.