chief suspect

Translations
основной подозреваемый
The chief suspect was taken into custody for further questioning.
Основной подозреваемый был взят под стражу для дальнейшего допроса.
Definitions
The person who is considered the most likely to have committed a crime or wrongdoing, often due to evidence or circumstances that point towards their involvement.
Words
suspect

noun
подозреваемый
chief

adjective
главный