This isn't the first use of proteomics for fish fraud, but this is the first one I know of that went head to head with genomics based fish fraud!
What's fish fraud you ask? Here is a CNN article. Sorry if it's stupid. Here is the thing, though, it makes a lot of sense to take a cheap food product and market it as a more expensive one.
In the end food counterfeiting is relatively common and mostly benign, unless you get have allergies to one specific food and are served another of your have cultural reasons, etc.,. And, btw, what is the tuna salad at subway actually made of? I know they keep failing tests for actual tuna in the tuna salad.
This is what we've found when we've investigated whether products are actually what they say they are: we generally find a correlation between lies and other bad things. For example, when we examined CBD oil products in the US, we found that products that were the most ridiculously labeled, including statements like "approved by the FDA" there was a pretty good chance the Q Exactive would find something in that oil that doesn't belong. And products that were adulterated were also more likely to have industrial contaminants, etc.,.