Cacti In The Kremlin?

The Russian government is proposing a limit of not more than two peyote cacti per household. Since it takes an expert to distinguish between cactus species, how would they enforce this? How many people in Siberia grow cacti anyway? Besides, it can take two dozen plants to produce one hit of mescaline. There are only an estimate 300 plants in the entire country. Maybe they should focus on their vodka problem instead.