Tens of thousands of anti-government protesters have gathered outside Government House in Bangkok calling for Prime Minister Yingluck Shinawatra and her administration to resign.
Some protesters climbed the fences but the gathering appeared to be mostly peaceful.
Yingluck said on Saturday the police would act with restraint if people tried to occupy public buildings, including their main target, her Government House offices.
More top news
Fire services are spending thousands on the 25-stone models - nicknamed 'Barry' - to learn how to handle larger patients.
Ahmed Hassan, 18, has been charged with attempted murder and causing an explosion with intent to endanger life.
A growing number of rank and file officers say they support being routinely armed while on duty in the wake of terror attacks.