Thaksin Shinawatra, a former Thai prime minister who still holds a lot of sway in the government, has been accused of disrespecting the monarchy.
This is a huge deal because Thailand has very strict laws about criticizing the King, and Thaksin could face serious consequences.
The situation is causing political tension in Thailand, as Thaksin's influence could make things unstable.
This is just the latest example of how powerful the military and royalist groups are in Thailand, and how they can significantly impact the country's politics.