Yep, happened a few time with tourists. One example.
"A British journalist is facing up to five years in prison in Thailand after being found in possession of body armor and other protective gear.
Tony Cheng, a freelance correspondent for Chinese state broadcaster CGTN, told CNN he was charged Monday night with possessing “war weapons” after
being stopped with German colleague Florian Witulski at Bangkok’s Suvarnabhumi Airport."