The Thai police have a thing or two to teach the Malaysian police in terms of controlling protesters. Looks like the Thais have a very high regard in terms of safeguarding civilians engaged in protest, mind you, this one was serious because they were calling for the PM to resign.
In our case, a peaceful march to the Agong’s palace warrants the police to use water cannons and arrest!!

Jongrak had ordered riot police to carry only shields and no batons in hopes of deterring violence
The police tried their best,” Bangkok police chief Gen. Jongrak Jutanond said. “We were armed with nothing but shields