What remedies are there if it was subsequently discovered that a witness lied at trial? Suppose this is a tort case (my understanding is unlike a criminal case there is no double jeopardy in tort cases), where a plaintiff was suing a defendant for a lot of money in a tort. A witness testifies that s/he was with the defendant at the critical time (true) and that the defendant was not at the scene of the tort and could not have committed it, and this testimony causes the defendant to go scot-free. After the trial, a police or other investigation establishes that the witness, and probably the defendant, was at the scene of the tort, meaning that the testimony was false. What remedies are therein the United States? I would imagine that the witness could be prosecuted for perjury. My guess is that the plaintiff could prosecute the witness for the lost damages. Are there any other remedies like reopening the original trial or declaring a mistrial so that the plaintiff could sue the (deep-pocketed) defendant, or would this be double jeopardy?
What remedies are therein the United States? I would imagine that the witness could be prosecuted for perjury. My guess is that the plaintiff could prosecute the witness for the lost damages. Are there any other remedies like reopening the original trial or declaring a mistrial so that the plaintiff could sue the (deep-pocketed) defendant, or would this be double jeopardy? Perjury prosecutions are like unicorns. They are rumored to exist but are almost never seen. A prosecutor would be exceedingly unlikely to bring charges in such a case, but it might not hurt to ask. Even if the criminal prosecution prevailed, however, the defeated plaintiff would be no better off, or might get out of pocket court costs as restitution at most. You could request that the witness be sanctioned for contempt. But, this leaves the loser in the original case no better off unless the judge made the highly unusual decision to award compensatory damages as a contempt sanction. Similarly, if you have reason to believe that the attorney knew that the testimony offered was false, that would be grounds to grieve the lawyer which could result in the lawyer's suspension or disbarment, but that is very difficult to prove and again would not advance the unjustly defeated plaintiff's cause. Assuming that the time to move for a retrial (usually two weeks) expired when the new evidence was discovered, you could move to set aside the verdict (Federal Rule of Civil Procedure 60 or the equivalent state rule). The deadline for such motions based upon fraud by an adverse party is usually six months. Sometimes an independent action to set aside the verdict for fraud on the court could also be brought (sometimes within two or three years), which is an uphill battle, but probably the best option if all other deadlines have expired. The witness probably has absolute immunity from civil liability outside that court case for the testimony offered, so a civil action suing the witness for lost damages would be dismissed. The doctrine of double jeopardy does not apply, but a similar doctrine called "res judicata" (a.k.a. "claim preclusion") prohibits retrying a case that was tried on the merits between the same parties, if it has become a final order. So, filing a new case is ruled out assuming that no appeals were filed within the deadline for doing so. And, even if the deadline for filing an appeal has not lapsed, it probably wouldn't prevail because the key new evidence wouldn't be in the record. It would be better to file to set aside the judgment in a motion and to appeal if that motion was denied.
The standard of proof required to survive a motion to dismiss is very low. The factual (not legal) assertions of the plaintiff are assumed to be true, and the case is dismissed if the defense shows that even when the plaintiff is given that benefit, the assumed facts don't establish the case. This standard is somtimes referred to as "sufficiency of the claims".
Lawyers may break confidentiality with client permission. You can also break your own confidentiality and talk to the prosecutor yourself. The prosecutor's response is up to the prosecutor; however, they tend to not be super excited about giving immunity to a witness for the defense if they might want to prosecute the witness later (and courts often are fine with that), so the more they suspect about your true role the less likely they are to grant it. No. If the feds later find truly independent evidence (they have the burden of showing it's truly independent), they can prosecute. Some states give transactional immunity to witnesses (you can't be prosecuted for crimes you testified about for any reason), but the Fifth Amendment doesn't require it and at least the feds aren't bound by state transactional immunity. It's hard to prosecute, but is possible if prosecutors play their cards right. Yes, it does allow civil liability. There is no right against self-incrimination in civil matters, only criminal liability. If the forced testimony leads to a lawsuit that bankrupts you, too bad.
The terminology used may vary some by jurisdiction, but in many it will be said that Bob provoked the confrontation, or that Bob was the aggressor, or that Bob was engaged in a felony and so cannot claim self-defense. This fact patter is highly unlikely to arise in real lie, because if Bob has even a half-competent lawyer, the issue of self-defense, sure to fail, will not be raised. Doing so only wastes the court's time, and may well make them think worse of Bob, which may cost him. In less open-and-shut cases, the general rule is that one who provokes a confrontation, or who is the aggressor, may not claim self-defense. But the exact rule varies by jurisdiction, and the line will be drawn in different ways in different jurisdictions. In some one who seeks a confrontation may be denied a right of self-defense.
TL;DR: You may have chances. Consult a German lawyer fast. In German civil cases there is the possibillity of "Reopening of proceedings" (Wiederaufnahme des Verfahrens), §§ 578 ff. ZPO. It can be used in special cases of incorrect proceedings. You have an "Action for retrial of the case" (Restitutionsklage), if "in a testimony or report on which the judgment was based, the witness or experts violated their obligation to tell the truth, such violation being liable to prosecution", § 580 n. 3 ZPO. The lie of the expert witness seems to be prosecutable as "False unsworn testimony" (Uneindliche Falschaussage, § 153 StGB). This crime is under Limitation on prosecution (Verjährung § 78 StGB). Nevertheless it is a reason for reopening. There are short periods for filing such an action, § 586 ZPO. It has to be within one month after knewing of the cause for rescission. If you expired this period without fault, you may get "restoriation of the status quo ante" (Wiedereinsetzung in den vorigen Stand, §§ 233ff. ZPO). But again there is a very short period after you are able to file the action. The wording of § 586 II 2 ZPO excludes reopening after five years. But this clause is reduced in practice, if enforcement is still possible (Braun, in: Münchener Kommentar zur ZPO, 5. Auflage 2016, § 586 Rn. 4). So it does not apply in your case. So you may have an action for retrial of the case, but only if you act now fast. For the details, esp. when the periods begin to run in your case, please consult a German lawyer. You may also have a case against the expert whitness and/or the plaintiff because of fraud in the process (Prozessbetrug) and/or § 839a BGB about the liability of court-appointed experts. As the judgement is about €70k the I assume the process was at a "Landgericht". It is not possible to negotiate there without a lawyer. I don't know if it is a cause for rescission, that the judge didn't gave you a chance to get a new lawyer and proceeded without your lawful representative.
The order of operations is important I assume that plaintiff filed for a Protective Order. To get this granted, the plaintiff has to allege some kind of wrongdoing and evidence of that. If the defendant responds, then the plaintiff can amend their filing. Then the defendant once more can respond to the allegations. If the plaintiff wants to amend the filing once more, they need to ask the court to be allowed to do so, and that opens the door for the defendant to answer once more. That's all history for the case presented: The court apparently found the evidence lacking and dismissed the application for a PO. Plaintiff can only file for reconsideration or appeal but not bring in new evidence at this point. Dismissed Cases are not automatically evidence A case that did not establish its burden of proof and was dismissed - especially with prejudice - has not established that the evidence in it is good. You have to ask each item to be admitted separately and re-establish that it is good evidence. A bulk filing &quot;I want to bring this case as evidence&quot; is generally denied unless you prevailed in that case. A dismissed case is one you didn't prevail in. Get a Lawyer! It seems like you are in serious need of legal counsel to clear up the situation. Contact a lawyer for at least a free consultation if you even have a case.
A lawyer for either party can claim, during argument, that an adverse witness is not credible, for any reason or none. Often the lawyer will point to matters disclosed during cross-examination, claiming that they are contradictions, show bias, or otherwise indicate lack of credibility. Or the lawyer could point to elements of the primary testimony which the lawyer claims are implausible. If there has be evidence of a prior conviction, the lawyer could refer to this. A lawyer may in general ask a witness about prior convictions. Criminal convictions are generally matters of public record, and can be researched. It is not usual to present reputation or credibility witnesses for any person except the defendant, and failure to do so, even for the defendant, does not lead to any automatic assumption of lack of credibility. Not does the appearance of such a witness grant an automatic assumption of credibility. But a lawyer may point out reasons for thinking a witness not credible. Ultimately it is up to the finder of fact, often a jury, to decide what weight to give the testimony of each and every witness, based on the impression that testimony made, as well as any argument from the lawyer. This is one reason why courts are reluctant to overturn factual assessments by a jury: the reviewing court does not see and hear the manner of a witness and what it may indicate about credibility.
The judge's instructions state: You have been allowed to take notes during the trial. You may take those notes with you to the jury room. You should not consider these notes binding or conclusive, whether they are your notes or those of another juror. The notes should be used as an aid to your memory and not as a substitute for it. It is your recollection of the evidence that should control. You should disregard anything contrary to your recollection that may appear from your own notes or those of another juror. You should not give greater weight to a particular piece of evidence solely because it is referred to in a note taken by a juror. There is a pattern instruction in Washington that addresses requests to rehear testimony: In making this decision, I want to emphasize that I am making no comment on the value or weight to be given to any particular testimony in this case. The testimony you requested will be [read to you] [replayed for you] here in the courtroom. You will hear it only one time. After you have heard the testimony, you will return to the jury room and resume your deliberations. When you do, remember that your deliberations must take into account all the evidence in the case, not just the testimony that you have asked to rehear. The notes on use state "Although judges have discretion in responding to these requests, the case law disfavors repeating trial testimony for deliberating jurors", followed by the state of the relevant case law. The central point in that discussion is: The concern addressed in the case law is that rereading requested selections from a trial transcript can lead jurors to give undue emphasis to the selected testimony. and an additional concern is that reading the trial transcript selections to the jurors could constitute an unconstitutional comment on the evidence. and finally jurors often request the testimony of a single witness rather than requesting balanced testimony from multiple witnesses that more accurately reflects the positions taken by both parties. If the judge grants such a limited request, then one party's version of the case might be unduly emphasized, yet if the judge expands on the request by repeating the requested testimony along with other relevant testimony, then the judge runs the risk of improperly commenting on the evidence. Minnesota criminal procedure rule 26 Subd. 20(2) addresses the matter of rehearing evidence, saying that the court can allow a hearing of specific evidence: (a) If the jury requests review of specific evidence during deliberations, the court may permit review of that evidence after notice to the parties and an opportunity to be heard. (b) Any jury review of depositions, or audio or video material, must occur in open court. The court must instruct the jury to suspend deliberations during the review. (c) The prosecutor, defense counsel, and the defendant must be present for the proceedings described in paragraphs (a) and (b), but the defendant may personally waive the right to be present. (d) The court need not submit evidence beyond what the jury requested but may submit additional evidence on the same issue to avoid giving undue prominence to the requested evidence. This rule where judges have discretion is a change from an earlier rule where judges had an obligation to allow rehearing. When there is no obligation to allow rehearing, the "safer" path is to not allow rehearing. In State v. McDaniels, 332 N.W.2d 172, the appeals court notes that The judge reasoned that to read the requested portions of the two police officers' testimony would give undue prominence to that portion of the evidence. The prosecutor argued that three or four other witnesses had testified regarding Fifth and Royalston. The testimony was widely scattered throughout the transcript between direct and cross-examination. To locate all references would be burdensome and impractical thus reflecting the reasoning underlying the Washington instruction. In State v. Rean, 421 N.W.2d 303, 306 (Minn. 1988), the court turned down a request to rehear testimony, saying "You will have to rely on your memory of the testimony". The Supreme Court concludes that "To avoid giving undue prominence to the testimony requested, and in light of the difficulty of providing all relevant testimony, the jury's request was rejected". It then observes that "Simply because the jury apparently felt that it was at an impasse did not mean that the trial court was obligated to grant the jury's requests". The court rejected "the wooden approach of always granting a request, even an unreasonable one, if the jury says it is at an impasse" We do not know what objections the prosecution and defense raised regarding the request to rehear, but if one side would likely benefit from a rehearing, the other side is entitled to a "balancing" rehearing (the rules allow the jury to be directed to consider testimony that they did not request a rehearing of); and tit might have been onerous to assemble that evidence.