Of course we shouldn't have to engage in pre-emptive defensive strategies like this. Cops should operate to far higher standards and exemplify the principle of innocent until proven guilty. But the reality is that a lot of them are stupid and/or corrupt. Having been arrested on false pretences a few times, your post-contact explanations, no matter how reasonable, don't carry much weight if the cop finds you suspicious for some reason. For all practical purposes, cops are trained to maximize confirmation bias.
Not to justify the experience, but I don't think the purpose of the test is to explicitly discriminate the difference between a person being hot or an item the person has being hot. The test is often used to identify people who work with nuclear materials, where then you want to determine if they are a nuclear worker, spy, terrorist, or simply a member of the public.
I'll also add that despite being really good at detecting radiation there's really high variance in how people respond to sources. I had a tritium keychain shipped from China a decade ago and it sat in customs for several weeks. The general public does not know the difference between radiation types or even understand levels. I highly doubt they are using sensitive detectors and just using a cheap Geiger Counter (which beta emitters will set off). I very highly doubt they are using neutron detectors.
Interestingly I bought the tritium on Amazon but it no longer seems like you can buy them there. There are several listings that __look__ like they sell them, but here's an illustrative example[0]. Note the last picture specifies the vial is not included. When you search Amazon you will come across a lot of phosphorous and certainly there are many sellers trying to pass this off as tritium. It looks like you can still buy uranium ore though...
[0] https://www.amazon.com/TEC-SCR-Isotope-Chain-Reaction-Aqua/d...
[Note] For those reading, tritium is perfectly safe. Radiation levels are not high enough to pass through skin and even light clothing will block it. A keychain is typically a very small quantity which is contained in a glass vial that is coated with phosphorous (to emit light, like a CRT monitor), and then contained in acrylic. I have personally tested that keychain and even let students use it as an extra credit in a radiation detection lab (they were asking about the safety). There is danger if you consume it or rub it in your eyes or genitals (or other soft body parts), but the amount you'd have for a keychain is very insignificant and poses zero risk. It's worth mentioning that tritium is going to be a gas, so if you break the vial it still will not represent danger unless you break it inside your mouth or right in front of your eyes (still likely low risk) due to the fact that it will quickly disperse (it is lighter than air). Tritium is fucking awesome and I wish production was a bit higher so we could have more access. It is commonly used in watch hands and gun sights but can essentially be used in anything you want to "permanently" glow in the dark. Half life is about 10 years but worth mentioning that you won't get a bright glow, but it will be easily identifiable at night or very low light conditions.
This was Tc-99M, half life 6 hours, 140keV gamma emitter. Commonly used in imaging heart arteries.
I fully believe that there is no hard rule based system that can adequately account for all reasonable scenarios. In fact, I think a key part of what makes us different from machines is being able to reject "rules" because we understand they're more akin to guides. So I agree and thank you for bringing this up.
Side note: in many countries medicine does in fact come in pre-measured dose bags. It might be more plastic but it sure is convenient and has other advantages.
That probably sways my thoughts on should it be enough for an arrest if it flags as positive some though.
Here's you're equating cops' default behavior with doing their job of law enforcement, while overlooking the fact that they often don't perform that job well because they discount reasonable possibilities that initially suspect activity is not actually illegal, and reflexively waive issues like presumption of innocence, 4th amendment limitations and so on. Read up on police training, which is terrible in the US.
> This paper explores this case in detail and its potential impact.
You talk about them like they are the enemy. Lots of people talk about them like you without a word of thanks without acknowledging how fucked we would be without the good ones out there. I am thankful we aren't living in a country where there is complete anarchy or horrible police corruption like in Mexico.
Municipal budgets aren't great and their pay and benefits should be better for the work they do. You and I being on this forum probably means we are paid way too much for not real jobs screwing around on computers. There is a reason we aren't cops and their hiring isn't great. It is a hard job where you literally risk your life and literally deal with the worst parts of society.
There are guns in America. It doesn't matter whether we think that's right or not, that's the world we live in. There are criminals out there, they exist. Should cops carry around tasers only? I would like my local police force to effectively deter local criminals. Lax laws and lax deterrents are taken advantage of, we are not some peaceful species.
One of the reasons for such anarchy in mexico is because there is such a profitable black market for drugs in the US. Our drug policy at home and abroad is one of the biggest reasons that narcostates even exist. What do you think would fund them to such an incredible extent if they didn't have such an incredible cash cow? Definitely not avocados or human trafficking
Drug prohibition is the entire reason that fentanyl is now in the drug supply and prohibition where supply is unregulated is a large reason for overdose deaths. Most overdose deaths are due to inconsistency in potency which would not be a problem if the supply were regulated. Compound that issue with the harm that the legal system does to someone with an addiction, essentially barring them from normal life if they have a conviction, and we have the recipe for disaster which is the current state of affairs. People with drug convictions are generally seen as having a scarlet letter of unemployability which generally keeps them in a state of addiction and/or homelessness and there is a massive stigma attached not only to drug addiction but mental health issues which usually go hand in hand. That makes it incredibly difficult to get proper treatment.
It is (?) an unproven performance enhancing drug
Much more serious and dangerous than even the most dangerous recreational drugs is it not?
[0] https://www.reddit.com/r/Nootropics/wiki/beginners/#wiki_cre...
As a supplement, it is extremely well researched (probably the most researched exercise supplement) and has been thoroughly demonstrated to have moderate enhancements to digestion, metabolism, and physical performance in all kinds of populations. It is also quite safe. Taking too much for too long can cause stomach discomfort, muscle cramps, dehydration, and in rare cases kidney damage.
The body produces about 1g per day naturally and humans who eat meat tend to get another gram or so through diet. Supplementing ~3g per day has been demonstrated to be extremely safe pretty much indefinitely (except possibly in people with liver or kidney disease, possibly other organ dysfunction).
Just like caffeine (and all manner of substances) if you have lots of pure powder and no clue about safe dosage, it can get dangerous very quickly.