Final answer:
Reasons are necessary for decisions involving justice and the right for a fair trial in instances where a judicial body is involved, a liberty may be lost, and there are no countervailing considerations. These reasons facilitate transparency, reviewability, and trust in the judiciary.
Step-by-step explanation:
The reasons for a decisions relating to the interests of justice and the right for a fair trial are necessary under specific conditions. If the decision-making body is judicial, it must reason its decisions for accountability and transparency, essential for the public's right to know and the litigant's ability to review.
A decision that may result in a loss of liberty must require detailed reasons as it has significant ramifications for the person's life. In an instance such as this, it is vital that the reasons provided are comprehensive to ensure the decision does not violate the right to a fair trial.
No countervailing considerations mean that if there are no other overriding interests to consider, like national security or privacy rights, full reasons must be given to foster trust in the judiciary and facilitate effective review.
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