What exactly triggers the condition of &quot;being under arrest&quot; The Chicago police used to (or perhaps still do) take detainees to a site at Homan Square, question them, take them a different police site and then arrest them. Or at least that's what they claim. Can a LEO actually move a detainee miles from the point of initial detainment without arresting them? My intuition says that a LEO moving a detainee that far implicitly puts the detainee under arrest, even if the LEO doesn't make it official until later.
No An arrest is the act of detaining a person or property by legal authority or warrant and has been made when a police officer or another individual makes it clear to the person that they are no longer a free person. A person does not need to be physically touched to be placed under arrest as words alone are capable of bringing about an arrest if they establish that the person is no longer a free person. Now, if a LEO asks you to accompany them, then, so long as you have the choice not to, you are not under arrest.
Prior to Tennessee v. Garner, 471 U.S. 1 (1985), common law allowed police to use deadly force to effect the arrest of a person suspected of a felony. Even though SCOTUS there held that such a practice violates Fourth Amendment civil rights, I was surprised to find that in some states it is still lawful for police to use deadly force to effect an arrest! Let us examine the most extreme case, which is that the police can legally shoot at you to effect your arrest. As explained here, you are always allowed to resist &quot;excessive force.&quot; If you make it to court, these qualifications (e.g., &quot;necessary&quot; and &quot;excessive&quot;) are ultimately decided based on what a &quot;reasonable person&quot; would have believed in the situation. So if a cop shoots at you, and you &quot;dodge&quot; the bullet, it is possible for you both to be found not guilty of any crime. I.e., the cop can be found to have acted &quot;reasonably&quot; because he believed you were a violent felon and shooting you was the only way to stop you. And you can be found to have acted &quot;reasonably&quot; because you believed you were being subject to excessive force. While this is an interesting hypothetical, in practice of course by the time a cop is shooting at you you are almost certainly going to be charged with resisting arrest. Or, if the cop fired in self-defense (rather than to effect an arrest) you will be charged with a number of far more serious crimes (starting with felony assault, reckless endangerment, and going on from there...).
In the scenario you described, you were both right: Police have no authority to demand that you leave a public space because you are photographing, nor does the government have the right to prevent you from photographing anything that is visible from a public space, including government facilities or employees. However, the police would likely have followed through on their threat to arrest you. In that event, any vindication for wrongful arrest and violation of your civil rights would only come (if ever) at the end of protracted and expensive litigation in the courts. (A plethora of examples is accumulated by watchdog groups like the ACLU and Photography Is Not A Crime.)
Silence is not cause. However, this may not prevent a search. The officer does not need to tell you that he has probable cause, he must simply have it in order to conduct a search. If he obtained the probable cause before he pulled you over (this is likely), then he will order you out of the car and search over your vociferous (and silent?) objections. If the officer does not have probable cause, searches anyway, and can't come up with a convincing one in time for the court date, then yes you have a claim. But remember, just because the officer didn't inform you of the cause doesn't mean it didn't exist. Always consult an attorney before any legal action.
The police performed an &quot;open air sniff&quot;. Federal and Pennsylvania law differ on this. Under Federal law, this is not considered a search and can be done on any vehicle- usually to get cause for a more invasive search. (Illinois v. Caballes, 543 U. S. 405 (2005).) Under Pennsylvania law, an open air sniff requires reasonable suspicion. This is lower than probable cause- all it requires is that a reasonable person could suspect from the facts that a crime may have or could be committed. Being overly nervous during a routine traffic stop driving someone else's car could potentially be considered reasonable suspicion- as I only have your second-hand account, I won't speculate further. If there was no reasonable suspicion, any evidence found by that search, or evidence found by a search justified by it would be suppressed. Fourth Ammendment rights also apply here. The police cannot detain someone solely for the purpose of waiting for a sniffer dog. They have ways and techniques to waste time for this purpose, but if the stop was concluded before the dog arrived, your husband would be free to leave. Again, I have only your second-hand account so I won't speculate on whether this happened. He should speak to his lawyer about specifics of the case.
Is this interpretation correct? YES Encounters such as this should normally fall within the non-statutory stop &amp; account which covers police-initiated conversations with members of the public to ask general questions about their activities when there are no reasonable grounds to suspect an offence. The terminology varies from Force to Force, but can be summarised as: What are you doing? Why are you in the area? Where are you going? What are you carrying? There is no legal requirement or obligation to answer any of these questions, and the police cannot lawfully detain anyone to ask them - unlike the statutory powers under Stop &amp; Search and Arrest covered by the OP.
To be very straightforward, yes, a police department would very likely have records of their past interactions with you in the form of police reports. They cannot just throw them away because it's been scrubbed from your public record. They detail the interactions the police officer had with you. That being said, those records would not show up in a general inquiry into your record, because those records are meant to protect the officer and the department as a reference point they can go back to in case some dispute arose in the future. If a police officer really wanted to find them, they'd have to do a bit of digging for them. The difficulty in finding them would depend on what system the particular police department uses to store those records. Smaller departments may just file them in a cabinet somewhere, whereas larger ones may actually have their own searchable database. But a traffic cop out on the street is only gonna see what you're seeing at the DMV - nothing. There is also a formal NCIC database, but traffic violations would never end up in there. That is a national database that basically stores red flag persons of interest (think stolen vehicles, sex offenders, and gang members). Sometimes multiple departments within a state will share their information with each other, but a department's database is usually kept to that department only. Also keep in mind court records. The court case that had a violation removed under such and such conditions is still gonna be a public record. Those records would generally be available to a judge overseeing your case so if you repeatedly end up in court for the same thing, they're gonna know and they're gonna stop scrubbing it from your record or offerring certain options because you're clearly not learning your lesson. Many laws allow you to have one offense stricken per year and similar stuff like that, but that kind of stuff doesn't just permanently disappear. They have to keep record of it in order to know you've already had your once per year etc. Also a note about parking violations: not all of those are actually issued by police. If it was issued by a private firm then that is not something that would ever show up on your record. It would just be in a database somewhere with whatever private firm issued the fine. Those kind of tickets get sent to collections and hurt your credit score if you don't pay them, rather than affecting your driving record.
There is pretty much never a right to retaliate against harm to oneself, even blatantly unlawful harm. There is a right to defend oneself and others. One can use force to stop someone from inflicting unlawful or unjustified harm, or to prevent someone from inflicting such harm when the harm is imminent. One is not permitted to use more force than is "reasonably required" under the actual circumstances. This is true in pretty much every jurisdiction that i know of. The details on how much force will be considered "reasonable" will vary. In some jurisdictions there is, under some circumstances, a s"duty to retreat". This generally means that if a person attacked can avoid the harm by fleeing with reasonable safety, that person must do so rather than using force in self-defense. In some jurisdictions this "duty to retreat" applies id the victim is attacked in public, but not in the victim's own home. The right to self defense does not apply when the "attacker" is an agent of the state acting lawfully. For example, a prison guard taking a condemned prisoner to a death sentence cannot be attacked on the grounds that the prisoner is engaging in self defense. In theory a police officer engaging an excessive force, particularly unjustified deadly force, may be resisted in self-defense. But courts are quite reluctant to find such resistance justified in practice. There generally must be very clear evidence of egregious misconduct for the court to rule for the non-police person in such a case. Note that "self" defense can equally be defense of another person. Pretty much all the same rules apply. Self defense applies no matter who the attacker is, but that force is reasonable may vary depending on the attacker. Only such force as is reasonably required to stop or prevent the harm may be used with a justification of self-defense.