Chinese everywhere. The whole town is basically owned by China and you need a special permit to enter from the Myanmar side.
On the markets you can find endangered live animals, ivory, tiger skins and much more illegal wares.
Prostution and kiddy porn is everywhere and little children are openly traded to buyers. I was offered a 12-year-old Vietnamese girl by the bellboy of my hotel.
Heroine and other drugs are easily available and Afghan men run opioid shops where you can find everything under the sun.
Furthermore, it is teeming with casinos, most of them shabby, sleazy joints full of working girls and a Chinese-Malaysian guy next to me at a poker game remarked he was trying to hire a hitman to take care of his wife.
Regular holiday stuff.????