How to detect smokeless tobacco usage?

Answer 1

You can generally only detect it as it's being used by the brown colored spit that the user produces while using the product, either that or the large lump in the area between the cheek and gum of the user. However using the product towards the back of the mouth in the molar region makes it far easier to hide it. This method only works with moist snuff like Copenhagen, Skoal, or Grizzly, to name a few brands. With chewing tobacco, leaf tobacco that is either cut from a twine of twisted tobacco or just pulled from a pouch, you can only really tell by the bulge in the cheek during use as it can be chewed like gum, or the brown colored spit. Snus, a form of moist snuff that is often packaged in small teabag like pouches is often undetectable as there is no spit and the pouches are small and generally placed in the upper lip. To detect a user without seeing the obvious evidence as listed above, the only way to know for certain is if he (in rare instances, she) has a can shaped ring in his clothing (for Americans, usually in the back pocket) and even then that is only limited to use of dip tobacco like Copenhagen, Skoal, or Grizzly as snus and chewing tobacco is generally not packaged in a way that would create the distinctive "skoal ring" (chew comes in resealable pouches and snus in cans shaped more like a cell phone, thus making them easier to hide on the person).