Police say they are investigating whether a television show that featured a rare debate on the role of Thailand's monarchy violated a strict law against insulting the royal family.

The ThaiPBS' program created an uproar last week by discussing the role of the monarchy under the constitution and the controversial law that defends it from any criticism.

National police spokesman Maj. Gen. Piya Uthayo said Thursday that a preliminary investigation found some of the arguments made by two guests on the show might have violated that law.

Thailand's lese majeste law allows for jail time of up to 15 years for "whoever defames, insults or threatens the king, the queen, the heir to the throne or the regent."

Piya advised the public against sharing the show's content on the Internet.