Giles Ji Ungpakorn, a political science professor, said he was formally charged under the kingdom's harsh lese majeste laws protecting the monarchy from defamation.
The academic told AFP he
was was charged over the content of my anti-military coup book, A Coup for the Rich.
The charges seem to have arisen out of a complaint made by the Chulalongkorn University book shop to the police, said Giles
, a Thai national who teaches there.
has 20 days to make a statement to the police, who will then decide whether to forward the case to the courts for trial.
Giles Ji Ungpakorn
arrived in England at the weekend after being charged under the laws.
had been due to present himself to the police in Bangkok today and could have faced 15 years in jail if found guilty.
I did not believe I would receive a fair trial, said Ungpakorn, an associate professor of political science at Chulalongkom University and a contributor to the New Statesman and Asian Sentinel.
is the author of A Coup for the Rich , in which he
criticises the 2006 military coup.
said that the charges arose out of eight paragraphs in the first chapter deemed insulting to King Bhumibol.
He claimed that the director of a university bookshop stocking his book had informed the special branch that it insulted the monarchy.
Giles is the second New Statesman contributor to have faced such charges in recent months, the first being the Australian writer Harry Nicolaides, sentenced to three years in prison on 19 January.
Although the names of former PM office minister Jakrapob Penkair and Chulalongkorn University professor Giles Ji Ungpakorn, both in exile over lèse majesté charges, are known to be on the blacklist, the rest of the list is secret.