You are underestimating how easy it is to email a lab service to synthesise a plasmid for you... Just first hit from google is this place in the EU https://euro

You are underestimating how easy it is to email a lab service to synthesise a plasmid for you... Just first hit from google is this place in the EU https://eurofinsgenomics.eu/en/gene-synthesis-molecular-biology/gene-synthesis/plasmide/ https://eurofinsgenomics.eu/en/gene-synthesis-molecular-biol... But you can find them in less scrupulous countries with less well trained people, and in general it's widespread as a service. Almost nothing is done to actually check for how dangerous what's being produced is, other than what you tell someone.