I guess the police in Jakarta would have let him go for the slander part. It was the second act that got Mr Djemat thrown in the hoosegow:
The South Jakarta Police arrested a man late on Tuesday for slander and assault after he accused actor-turned-district head Zumi Zola of having an affair with his wife.
Bernaldi “Aldi” Djemat had reported Zumi, the district head of East Tanjung Jabung in Jambi, for adultery and sending “dirty” text messages to his wife, Peni Fernita Saputri.
Apparently there’s a history here.