The writing is on Calgary walls and sidewalks and anywhere else local graffiti artists can paint their anti-G8 messages.
But so far Calgary police say there is nothing ominous to the spray-painted protests.
"There is no real threat at this point," Const. Marcel Dubois, the Calgary Police Service's top graffiti buster, told the Sun.
The messages, scrawled on sidewalks or spray-painted on walls, are short and simple: No G-8.
Dubois and dozens of volunteers analyse the messages for clues to sources, and then remove it.
"What we're trying to do is identify the persons who are ultimately responsible and if indeed they are attached to a particular group of protesters that Calgary police and RCMP need to concern themselves with," said Dubois.
Dubois predicts there could be a time graffiti is used to reach a much larger audience.
"The graffiti could be used as a newspaper for protesters to tell about upcoming events or meetings."
Dubois and the volunteer Graffiti Response Information Team are chasing down anti-G8 markings throughout Calgary. They've tracked down, recorded and removed The first was spotted just one day after last July's announcement G-8 leaders would hold their next meeting in Canada. The most recent was found last week when someone wrote G-8 with an X over it on a Global Petroleum Show billboard. The message also included a large black dot.
"The significance of the black dot, I haven't been able to ascertain at the present time," Dubois said.
Dubois works closely with G-8 investigative police collecting intelligence to ascertain which activists are planning to protest against the June 26-27 meeting in Kananaskis.
They are dissecting the messages for any hint the authors may be from violent militant groups.
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