Take the following as truth: Failing a real hardwood blowpipe, you can buy the handsome quiver of stout rattan-bound bamboo with the poison darts (minus the poison), both authentic, and a shorter pipe of bamboo that does a perfectly serviceable job of blowing darts into your cork dartboard at home.
Then the following statement: "Criminals frequently buy dart blowers made of bamboo." is true, false, or inconclusive?
Answer: Inconclusive