If somebody claims: our device "accurately tests", and we discover later that "In fact the tests hadn't been done still" (at a meaningful way), It should be tak

If somebody claims: our device "accurately tests", and we discover later that "In fact the tests hadn't been done still" (at a meaningful way), It should be taken as a red flag. Specially when it came in the same package with "to make lots of tests would be really cheap" (but for some reason they didn't tried it). Maybe be a great, honest work, brilliant step?. Yes. But please don't claim that your model is reproducible if you didn't ever tried seriously to reproduce it first. What if the results are just a random effect?. What if the test says just positive most of the time? The test negative response has been tested in a control group of 4 people? This is 20 bucks well spent. --At this moment-- isn't different than other thousand projects that seemed too good to be true, took the money and soon vanished. I hope to be wrong.