There was actually a statement attributed to the minister saying that "transactions without description or tag will likely be taxed," which means that every transaction must carry a description for which that transaction was initiated, so as not to get double taxed, because that is what the statement likely means.
I did not know about this, if you are paying your tax, you have nothing to be worried about in my own opinion. To add double tax to transactions that has no description is only false.
If someone is suspected to be evading tax, they will first carry out investigation on the person, the person will be questioned about it before penalizing the person.