How quickly will they obtain a warrant? If the police are investigating a cyber-crime, and all they have is the IP address and they obtain the details from the ISP, how quickly will they usually obtain a search warrant in order to preserve evidence?
It depends on the nature of the crime, among other things. Under Section 8 of the Police and Criminal Evidence Act 1984 (PACE) the police must provide evidence to a court that a search warrant is necessary to secure and obtain evidence relevant to an ongoing investigation into a crime. If there is evidence that time is of the essence with regards to the evidence at stake (e.g. there is a high probability that the evidence will be destroyed unless it is secured immediately) then the search warrant will be expedited. Once the search warrant has been secured, it will be an operational matter for the police to decide when and how to act on it. They could choose to do a dawn raid, for example, or they could monitor the suspect for a week and then search the property when the suspect is out. Be aware that under Section 18 of PACE, a search warrant is not necessarily required. The police may, in the course of arresting someone for an indictable offence, search the premises without a warrant provided certain criteria are met. Of course, this is predicated on the police having grounds for arrest, and in the vast majority of cases, a search warrant will be obtained.
I think haveibeenpwned would be legal in the EU because it carries out a task in the public interest (Art. 6(1)(e)), and it shares no more data then necessary, for example you can search for a password, but it would not show you the emailaddress which belongs to that password. It would also be legal for you to hold a copy of a leaked database, but only if you have a legitimate interest (Art. 6(1)(f)) to have it. Being a security company does not change that, but finding a legitimate interest might be easier. If you have a legitimate interest to hold a copy of a leaked database, it does not mean you can use it in any way you like. For example testing if the password still works, is very likely illegal everywhere in the EU. But I'm not familiar with the UK laws.
Hacking into a computer owned by someone else and accessing the data stored on it without permission is a misdemeanor according to StGB 202a (de|en). But only if it's successful. So a failed attempt isn't a misdemeanor yet. When you notice that someone might have committed a criminal offence (regardless of whether you are a victim or just a witness), then the usual procedure is to report it to the police. If they consider the crime serious enough to investigate, then they will request the identity from the ISP. But the copyright lawsuits which are filed in bulk by law firms working with media companies are not crime reports. They are civil lawsuits. A civil lawsuit is when someone had a tangible damage because of something someone else did, and now they want money in compensation. When there is no damage, then there is nothing to sue for. So when you want a judge to file an injunction to force an ISP to give them the identity of one of their users, then you would first have to explain to them how much financial damage you had because of that person and that this is enough damage to make it worth everyone's time. That might be quite challenging for nothing but a failed SSH login attempt. But it might be possible if a single person made so many login attempts that it incurred you non-negligible bandwidth cost or even caused a denial-of-service.
Your rights notwithstanding, the government has the power to do such things under appropriate circumstances. First, you would have to be in violation of some ordinance, for instance in Columbus OH you are a violator if the grass is over 12". This should generate a notice informing you what the issue is and giving a deadline for remedy. If you don't comply by the deadline, they are then empowered to send out guys with tools, and the city will bill you for the work. You could call them and ask what the deal is. They might say "We put the notice on your gate", or "we mailed it to you". From a legal POV, the onus is on them to be sure that you're notified. It would be a good idea to verify that this isn't a scam. [Addendum] Bryan TX kindly provides a video about code enforcement, and gives a link where you can go directly to the section of interest (starting 0:43). Your description of the situation is at variance with what they say is the law (12"; 7 day advance notice whereafter they will correct the violation. They also say no notice is required for second violation within a year; $100 administration fee added to costs; lien will be placed on property if unpaid). I assume that your back yard is publicly visible: they recognize that "when the area observed is plainly visible, from a vantage point where the Code Officer has the right to be there, there is no reasonable expectation of privacy". That could include visible from a neighbor's property if the inspector has permission from the neighbor to be there. Otherwise, there's a simmering 4th Amendment problem (assuming that they didn't get a search warrant).
Generally speaking, courts take whatever time they need to write their decision and then release it close to immediately. In cases where a judge believes she has the information she needs, she may rule "from the bench," announcing a decision and entering an order for the parties to comply, and then follow up with a written order later. The research process is fairly open-ended, but legal research databases are pretty advanced, and a good researcher can generally get his hands on the vast majority of what he'll need in very short order. But practically speaking, there are few limits on how long that process takes. A litigant who was growing impatient could seek a writ of procedendo to force a court to move faster, but my experience indicates that most attorneys wouldn't attempt that move unless a decision had been pending for at least a year with no action, which would be unusual.
The website owner brings in an expert programmer who testifies that the user cannot have gotten to a certain part of the site (or download, etc.) without having clicked to accept the terms of service, and that this document they're holding is a true and correct copy of the terms of service as of that date. That's evidence in favor of the site, and an adverse party has to have stronger evidence in order to overcome it. If the person didn't save a copy of the terms themselves, they'll have a hard time on this. Then the other party's attorney tries to discredit the programmer by asking questions like "how do you know there are no bugs in the software which could have allowed somebody to reach this without agreeing to the terms of service" etc. Apparently, some sites don't require users to click indicating agreement. If the company has significantly changed the site, terms of service, etc. since the time the user registered, and doesn't keep any copies of old versions around, and admits this, they'll have a hard time enforcing an agreement (as they can't produce a copy of it). If the user kept a copy, the user might be able to present that. It's up to the finder of fact to decide what to believe and how much weight to give the various witnesses' testimony.
An officer is allowed to pull you over for speeding and then decline to give you a ticket for speeding. So the lack of a ticket has nothing to do with it (unless you actually weren't speeding, not even 1 MPH over.) Simply having past felonies, however, is not a reason for an officer to be able to search the car. Without a warrant, he'd need probable cause, consent, or some other exception to the warrant requirement. It's impossible for me to say what happened here. Maybe your husband had an outstanding arrest warrant? Maybe the officer saw the gun from outside the car? Maybe one of you said "OK" when he asked to search the car? Or maybe the search was illegal after all?
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.