People are still encouraged to have fun during Songkran, but inappropriate behaviour such as groping or wearing revealing outfits could land you a $20 fine.
The Thai government was concerned after an increase in the number of reported incidents of men groping female revellers, and females who wore clothes that were too revealing.
As such, about 200 city law-enforcers were dispatched from the Phra Nakhon District Office as reinforcements to uphold these toughened laws, and an increased amount of security forces have been involved in this year's festivities.
In Bangkok's Khao San Road and surrounding areas, the atmosphere was robust with friendly water wars between Thais and foreigners amid tight security provided by some 300 policemen and 150 security volunteers.
STOMPer Andrew said:
"Its good that the Thai government is stepping in to enforce these rules.
"This way, Songkran still remains a respectable festival, without losing its cultural value."
Images 1 to 76 are pictures of 2012's Songkran celebrations in Thailand. The other pictures show the celebrations of 2011 and 2010.