Judicial = relating to the legal system and to judgement made in a court of law.

• When a lawyer argues in a court of law, it should be within the parameters of judicial system.
• The protesters demanded a judicial inquiry into the allegations.
• A decision can be taken only after the judicial proceedings are over.

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Judicious = wise, sensible, prudent, logical etc.

• She was mature enough to make judicious use of the scarce resources.
• A responsible minister should use public funds judiciously.
• He made a judicious decision about the investment in landed property during the period of recession.