This is the 17249th most frequent Russian word.
судебно
"Судебно" means "judicially" or "related to a court/legal proceedings."
Here, 'судебно' is used as an adverb indicating the relation to judicial matters in the context of document study.
Юрист изучает судебно связанные документы.
The lawyer studies judicially related documents.
In this sentence, 'судебно' functions as an adverb describing the manner or context in which the decision was made, specifically related to judicial acts.
Судебно принято решение о закрытии дела.
Judicially, the decision to close the case was made.
'Судебно' serves as an adverb linked to the process of appointment (judicially), indicating that the expert was designated in a judicial manner.