AbstractWitness testimony is one of the most common and widely used evidence
The testimony by the witness in the court is of vital importance in our criminal justice system
However, there are some pheromones such as vague definition of the scope of witnesses or a lower rate of the testimony by the witness in the court in our country’s practice
The imperfect legal norms about witness duty is an important reason besides the ones that witness themselves have low legal consciousness and witness protection system is not perfect
This thesis will have a study on how to perfect the testimony by the witness in the court by analyzing the value and the defects of the testimony by the witness in the court in our country and the legislation and practice in other countries
Key words: the witness to