Graffiti News

A Hong Kong court sentenced a 19-year-old to 18 months of probation for writing protest slogans on a toilet wall in marker pen. According to CP24, Leung Kai-lok, who has autism spectrum disorder, was charged under Hong Kong's national security law with acting with seditious intention and with destroying property, offences carrying a maximum of seven years in prison. Chief Magistrate So Wai-tak handed down the sentence on 12 August 2026, along with an order to pay HK$1,500 towards cleaning.

What was written, and where

The writing was done in marker on the wall of a toilet inside an office building. CP24 reports that it included the 2019 protest slogan "Liberate Hong Kong, revolution of our times", obscenities, and the words "die John Lee", referring to Hong Kong Chief Executive John Lee.

No spray paint, no scale, no audience beyond whoever next used the room. Measured as physical damage, the case was worth HK$1,500 — the cost of removing it.

The sentence turned on the words, not the damage

The gap between a HK$1,500 cleaning bill and a seven-year maximum is the whole story. Under the national security law, what made the writing serious was its content: an expression judged to carry seditious intention. Ordinary criminal damage law measures what it costs to put a wall back. A sedition charge measures what the wall said.

Chief Magistrate So Wai-tak, explaining the decision to impose probation rather than custody, noted that Leung Kai-lok was 12 years old during the 2019 protests and may not have fully understood the slogan he was repeating, and that he may have been influenced by material he saw online. "This does not mean that you cannot express your opinions," the magistrate said, according to CP24, "but freedom of speech is relative."

Where the case sits in Hong Kong's security enforcement

Beijing imposed national security legislation on Hong Kong in 2020, following the pro-democracy protests of 2019. Hong Kong enacted a further national security law of its own in 2024. CP24 reports that as of 1 August 2026, authorities had arrested 415 people for national security offences, of whom 185 had been convicted.

By any physical measure this case is at the small end of that record. By legal category it is in the middle of it.

Why people who follow street art should read this one

Writing on a wall is the cheapest public speech there is. It needs no platform, no permission and no money, which is exactly why almost every legal system has an opinion about it — and why those opinions differ so much from one place to the next.

In most jurisdictions, the question a court asks about graffiti is how much it cost to remove. The penalty tracks the damage: marker on a toilet door is a minor property matter, a burnt-out train carriage is not. Here the question was different. The wall was cheap to clean, and the sentence was set by the sentence written on it.

That distinction changes what the word "risk" means for anyone who paints, photographs or travels for walls. Where damage is the measure, exposure can be estimated from the surface and the cost of removal. Where content is the measure, it cannot.

Wallscape takes no side on whether unauthorised painting is art or vandalism. That argument is older than this site and will outlive it. What is worth stating plainly is that the two framings lead to different laws, different charges and different sentences, and that the difference is geographic.

What to check before painting anywhere

Rules on painting in public are local, specific and frequently misremembered. Before painting in any city, find out what the actual position is there: which walls are commissioned or tolerated, who owns them, and what happens if you get it wrong. Wallscape's map is built from documented and legal walls, and the feed shows what has recently been painted and where.