
If the overlap of the diplomatic channel for the supply of cocaine was the result of the joint work of law enforcement officers in Russia and Argentina, which the propaganda media write about, then the criminal case should be from the Russian side.
Since we are talking about diplomatic mission, operational support of the FSB inevitable, and the investigation is either (rather in the current layouts), or TFR.
The criminal case in Russia, however, should be in any situation. In addition to the most likely, this is the next grand fale of our authorities and they are involved. Then there will be neither business nor comments, in excess of a dry phrase that this is a joint operation.
By the way, according to the UN Office for drugs and organized crime, per year in the world (Colombia, Peru and Bolivia - cocaine is produced only in these countries, in Argentina it is only from there) 800-1000 tons per year are produced.
120-130 tons are delivered to Europe. In the entire eastern and southern Europe - 13 tons. That is, the seized 400 kg is approximately 3% of the annual cocaine market in the region. There are no separate data in Russia.