Who could have believed a couple of years ago that it would be possible to buy a psychedelic drugs in center of Riga absolutely legally? I guess only the last Riga junkies could think like that.
Nowadays a lot of shops (mostly online) were opened, which officially sell analogs of cannabis aka spice.
It is said that effect is absolutely the same, but Latvian police doesn't have any device to prove illegal status of this product.
Some Riga bars, e.g. Bakery, already include such products in their menu.
See similar herbal shop in Vilnius.