B1
If the police arrest someone, they take them away to ask them about a crime which they might have committed.
Dictionary examples:
They arrested the student for using a time machine to finish homework. (0.0)
The police arrested a teenager for excessive use of emojis in text messages. (0.0)
The police arrested a man for trying to teach his cat to drive. (0.0)
She was arrested for drinking and driving. (22.7)
He was arrested when customs officers found drugs in his bag. (34.0)