Issaraphan Snitwong na Ayudhaya, deputy police commissioner-general, said the officers represented every division of the force across the country.

Special Branch Police will be tasked with providing personal security for the visiting royals.

Fifty-five high-ranking officers who are fluent in English and considered well-mannered will escort the royals. The kings and princes will be escorted by 35 male officers while 20 female officers will take care of the queens and the princesses. They will closely follow the royals everywhere, staying within a metre of them, from the time they leave their rooms until they go to bed.

The Special Branch will also work with the Metropolitan Police and the entourage of guards of each royal personage to plan security at hotels and elsewhere.

The Crime Suppression Division will lead royal motorcades while the Highway Police will stay at the rear of royal processions. The Tourist Police will guard the royals away from public events. The Marine Police too will do their bit. The Immigration Police Bureau, with the National Intelligence Agency assisting it, will be strict with immigrants and potential trouble-makers. The Metropolitan Police Region 1 has set up a special weapons and tactics (SWAT) force for emergencies.

Taskforce commander Colonel Chanthawit Rammasoot, a deputy chief of Metropolitan Police Division 1, said the force would be split into two teams, each comprising two squads with four non-commissioned officers and an officer belonging to it. All team members have been recruited from elite police units operating as part of the Metropolitan Police Bureau.

After government-commissioned events, which end on June 23, the taskforce will remain active as an anti-terrorism unit to tackle specific crimes, he said.

Also, the city police have installed a high-speed online network in its safety zone project to view surveillance-camera footage. It is already in operation. Thousands of cameras have been installed at 120 sites in the city's 88 police station zones, said city chief Lt-General Wiroj Chantarangsi.

Policemen in small stations and in bureau headquarters will use a high-speed Web link, sponsored by True Internet and Law Enforcement Technology Solutions, to watch footage, he said.

"However, the people will be expected to play an important role in reporting unusual things to the police," said Issaraphan.