The process of law is adversarial whereby if you don't contest something, then by default you are accepting it.
General information
1.1 Structure of the legal system
Portugal’s legal system is a civil law system.
As per civil proceedings, the Portuguese legal system should not be qualified as adversarial
or inquisitorial.
The civil procedure is based on the dispositive principle, which means that
the parties are responsible for alleging the facts, gathering evidence and determining the
nature of the evidence they choose to provide.The court’s role is primarily to conduct and oversee the proceedings to ensure that the evi-
dence given is within the rules. It then weighs the evidence, according to pre-existing rules,
to render its judgment.
The court may, however, on its own initiative, request any evidence that it deems necessary
to reach its decision, based on the facts lawfully acknowledged by it. Indeed, under Articles
411, 417, 452, 467 and 526 of the Civil Procedure Code (hereinafter “CPC”), the Court may
call the parties to testify, order expert witnesses, call witnesses to testify and ask the parties
or third parties to disclose documents or other evidence to support the facts. Witnesses’ tes-
timonies are taken by the parties’ lawyers, but the parties’ testimony is taken by the judge.
https://www.mlgts.pt/xms/files/Publicacoes/Artigos/2014/Chambers_Legal_Practice_Guides_Litigation_2014.pdf