Government/legal collocation – "invest … with": select the preposition that completes the fixed phrase meaning "to confer authority". Sentence: "The parliament invested the new organisation ____ judicial authority." Choose the correct preposition to express conferral.

Given data

• Verb phrase: invest in the sense of "confer (power/authority)".
• Object: "the new organisation ____ judicial authority".

Concept/Approach
The fixed collocation is invest someone/something with authority/powers.

Option analysis
with — correct collocation: invest … with judicial authority. ✅by — would imply agency, not the item conferred.from — indicates source, not conferral.through — indicates means, not used in this idiom.

Usage examples
"The constitution invests the court with certain powers."

Final Answer
with