A few strokes of spray paint were all it took to ignite a national conversation.
When a globally recognised graffiti artist was fined after painting a wall in Chiang Mai's Old City last month, the incident was quickly framed as an act of vandalism under the Cleanliness and Orderliness Act B.E. 2535 (1992).
The city, after all, is in the midst of its bid for Unesco World Heritage status, where authenticity and preservation have become matters of international scrutiny.