After videos of a Saudi prince abusing (eg. molesting, beating
up, pointing loaded guns to their heads, getting his bodyguards to
beat up) innocent members of the public, had gone viral and online
outrage grew, the King finally issued an order to arrest the
Prince. The King is after all, the only one in Saudi Arabia with
the power to arrest the Prince (even the Saudi Police wouldn't dare
to touch a Prince without the King's permission, and there are
hundreds of Princes in Saudi Arabia).
Ah Nonymus commented :This kind of conduct is normal for the
Saudis. The Prince was foolish enough to get filmed, that's all.
Lots of cruel and inhuman treatment and rapes taking place indoors
against defenseless maids every single day; in contrast the
Prince's abuse captured by the video is taking place outdoors
against Saudi Arabian nationals, which is why the only reason why
authorities are taking action.

https://sg.news.yahoo.com/saudi-prince-arrested-over-leaked-abuse-videos-002311501.html