In copyright disputes in many countries around the world, experts who can provide professional opinions based on their deep expertise in specific fields play a very important role. It is the same in Vietnam when copyright disputes are brought to court. The judges and court staff may have almost no knowledge in specific areas of settlement such as fine arts, music, or computer programs. For this reason, they focus only on the legal aspect of the cases; however, the legal aspect can only be considered on the basis of analysis from experts, commonly known in Vietnam as “assessment” (or expert opinion). Assessment Has Become Essential For copyright disputes that are resolved in court, except in cases where the behavior is very clear, a court order only occurs when there are assessment conclusions. The legal basis for considering assessment conclusions as an important source of evidence can be found in the 2005 Law on Intellectual Property, as amended in June 2022, and its subordinate legal documents. However, the particular importance of assessment is not shown in legislation but rather in practice, through the fact that the courts and procuracies attach great importance to these assessment conclusions and treat them as necessary—sometimes even compulsory—documents from which they make their judgments and rulings. It is rare for a court to express any opinion on the contents of an assessment conclusion, and rarer still for a court to make a judgment or ruling that is contrary to the conclusion. Thus, it seems that assessment conclusions, though originally intended as reference points only, are becoming decisive documents in many cases. In other words, the party that wins the assessment conclusion is much more likely to win the case. An Obstacle to Be Resolved For better or worse, assessment has become very important in the