Someone sent a text message to my daughter-in-law saying that I was cheating. I want to ask the rumor police station to take charge. Can I arrest him once or several times?

1 time should not be allowed. You can communicate with your wife and then warn the rumor monger. If you call the police, the police station will only mediate. If the rumor monger not only sends a text message to your daughter-in-law, but also sends it to others, which affects your reputation, the police station can arrest people. The general police station will ask the rumor maker to apologize or detain him for 24 hours.