| Defective documentary evidence often comes across in civil action, which appears various, complicated and tiny, so most country's legislation and theory have not regulated in detail. In fact, as an important theoretical and practical issue, defective documentary evidence affects its probative force and become obstacles to party's testify activity and judge's adjudgement. If we don't study its phenomenon, we have no way to know its general law. From basic theory of documentary evidence, this paper analyses definition, characteristic, cause and classify of defective documentary evidence, study several kinds of it in practice, introduce legislation status at home and abroad, finally, analyses that parties apply and take precautions against it and that judges estimate its probative force, etc. |