Is it legal to keep a controlled substance at work? If someone has a prescription for a controlled substance and stores it in their desk at work, can they get in trouble? Can someone get in trouble if it is discovered?
In general property owners and employers can impose any rules on their property and employees (respectively) that are not prohibited by law. Granted, there are extensive statutes and regulations to protect "employee rights." I have not heard of protections that include "possession of prescribed medications," but that does not mean they don't exist in your jurisdiction. If you really want to know whether you have a legal right as an employee, and you can't find it in written law or regulation, you would have to consult regulators or employment law attorneys in your jurisdiction. (As a practical matter, of course, it might make sense to first find out whether one's employer wants to assert a policy infringing the right in question.)
That depends on how you get the ingredient list. If the list is published and not protected by a patent, then anyone is free to use it in making the same or a similar product. If the product is patented and the ingredient list is covered by the patent, and the patent is currently in force, then making a similar product would probably be patent infringement, and the patent holder could sue and collect damages. If the list is secret, and has been protected as a Trade Secret, and if the would-be imitator gets the formula improperly, then the owner of the formula would have valid grounds for a trade secret lawsuit and to collect damages in that suit. Improper means would include breaking into the owner's files, or inducing an employee or contractor to violate a confidentiality agreement. But analyzing the product and figuring out its composition, a form of reverse engineering would be perfectly proper, and would give the formula owner no claim. Similarly, if the owner was careless and allowed the formula to be disclosed, the imitator would have done nothing improper. So the outcome depends on the details of facts not stated in the question.
That the cop claims to be your friend is not more illegal than a salesman claiming that he has "the best offer" for you because he likes you (in fact didn't you see any film about the good cop/bad cop routine?) The term you are looking for is Entrapment. The (very simplified) basic idea is that police officers can promote the comission of a crime to catch criminals but cannot "trap" innocent people into it; the difference being that their persuassion should not turn otherwise innocent people into criminals. An extreme example would be if the cop threatens the target into commiting a crime. For the more usual situation when a cop promotes a crime to catch the criminal, I saw it explained (just for illustration purposes, it is not that you are safe when the cop insists a third time) as it follows: Legal: Cop) Oh boy! The place where I work is full of cash and they don't even have alarms or store it in a safe box. If someone helps me, we could go this night and take all of it. Are you interested? Target) I don't know. Cop) Trust me, it will be easy, nobody is there at night and it will be just a couple of hours. Target) Ok, count me in. Illegal Cop) Oh boy! The place where I work is full of cash and they don't even have alarms or store it in a safe box. If someone helps me, we could go this night and take all of it. Are you interested? Target) I am not a thief. Cop) Come on, it will be easy, the place is insured and nobody will be hurt. Target) Not interested. Cop) We can get 5000 US$ each one, just for a night of work. Didn't you told me that you had troubles with your bank? You could solve those overnight! Target) Maybe you are right, but I have no experience with these things... Cop) Do not worry, I will tell you what you need to do. Target) Ok, count me in. Note that it is not only "the cop insisted a lot". For the drug dealer example, if the cop insisted a lot but, when agreed, the boy produced the drug from his pocket, already packaged for sale, it would not be entrapment. OTOH, if the guy had told "I do not know where to buy drugs" and the cop had told him "go talk with X so he sells you the drug", then it could be considered entrampment. In any case, this is generic information only, entrapment is difficult to prove and will depend on the views of the judge/jury so, no matter how enticing that criminal offer is, just don't do it.
Unless there is a law or regulation against it, it is legal. However in a big government it can be practically impossible to determine whether something is legal. For example, nobody even knows how many criminal statutes have been promulgated by the U.S. federal government. And that's nothing compared to the volume of executive regulation and judicial case-law that determines whether something is illegal. I.e., in practice determining that something is legal is a bit like proving a negative. Furthermore, if you look long enough some argue that you can probably find some law under which almost any action could be considered illegal. Note also that even if it is not against the law, it could be proscribed by contract (read your Terms and Conditions!), and breach of contract is in general &ndash; but with an astonishing number of exceptions! &ndash; illegal.
This would be a violation of 18 USC 1361, which prohibits destruction of federal property. See also the DoJ legal notes on this crime. The act does have to be willful, so dropping a cup accidentally is not a crime. If for example the act is mustaching Obama's portrait, the damage would probably rise to the quarter-million dollar fine and 10 years in prison level. It would of course be at the discretion of the (new) DoJ whether to press charges.
You give no jurisdiction but in general: First, police have no obligation to be honest. So, yes they can collect this without consent by e.g. taking hair from your hairbrush (with a warrant) or giving you a glass of water while interviewing you and getting it from your fingerprint oils (which may not actually be technically possible but never mind that). No, they can't take it by "force" by sticking a swab in your mouth. Yes, it will almost certainly go into a database. Of course, there are some jurisdictions where police are entitled to decide you are guilty based on the fact that you didn't pay them a bribe.
To pick up on your comment 'Does this mean if I wish to build a chair for personal use, then since trade of chairs exists between states, Congress has the authority to outlaw possession or manufacturing of chairs?': Yes. For example, the US Congress can legislate to prohibit a farmer from growing wheat for use on his own farm, on the basis that there is interstate trade in wheat and therefore the Commerce Clause permits Congress to regulate the growing of wheat: Wickard v Filburn (1942) 317 US 111. If you grow marijuana, or build a chair, or whatever, you conceivably affect the number of marijuanas, chairs, etc that are traded between states. Therefore you affect interstate commerce. Therefore the US Congress can regulate you. The fact that your marijuana or your chair or your what is trivial in the scheme of the national economy is irrelevant if the aggregation of all regulated marijuana, chairs or wheat is significant: 317 US 111, 127-128. If the law didn't prohibit possession of marijuana absolutely but instead prohibited, say, the carrying of marijuana in schools, then the US Congress might have trouble relying on the Commerce Clause: see United States v Lopez (1995) 514 US 549 and replace 'marijuana' with 'handguns' (OK the marijuana/handgun analogy is bad but hopefully this illustrates that there are at least some limits on Congress' power -- it's not just 'any physical object that relates whatsoever to interstate trade therefore unfettered federal legislative power').
There are, as far as I know, no &quot;FDA-approved&quot; vaccines against covid in the US. The FDA has given Emergency Use Authorization to some vaccines. This does not currently include the Johnson &amp; Johnson vaccine. It is impossible for a person to get the J&amp;J vaccine in the US, because it is not authorized, and J&amp;J does not distribute it. One could imagine an unauthorized foreign vaccine being smuggled into the US, but it would be illegal to distribute it. I assume that you specifically mean, can a person refuse to get a vaccination on the grounds that it only has an emergency authorization and is not actually approved: and can one sue an employer for firing you because you refused to get vaccinated? In general, the employer can fire for anything they want, unless you have an employment contract that limits the grounds for termination. There are discrimination-based grounds that they cannot use, such as race, color, religion, sex (including pregnancy, gender identity, and sexual orientation), national origin, disability, age (age 40 or older), or genetic information at the federal level. Mississippi has no specific employment discrimination laws. Other that that, an employer can fire an employee for any reason, or no reason (Mississippi is what's known as an &quot;employment at will&quot; state). There are some state restrictions where it is prohibited for an employer to fire an employee for engaging in a specific required activity such as being called for jury duty or being called to military duty. An employer could not require an employee to break the law, but that is not applicable here.