How to prove the genuinity/nongenuinity of a signature? I'm not a law student, but I'm very interested in the topic and learning in general. I got curious about contracts and signatures recently, so I wondered if there have been cases where contracts have been voided because of invalid signatures. What constitutes a person's official signature, and what are the criteria (if any) for the validation of one's signature?
Contracts A contract is not a piece of paper; it is an agreement intended to be legally binding between 2 or more people and it may be verbal or written or a combination of both. That said, where a person has signed a document knowing that it contains contractual terms, in the absence of fraud that person is bound by the terms: it is immaterial whether the person signing reads the document or not. So there are two reasons why a signed contract would not be binding: the person did not know it contained contractual terms fraud. It is in the second case that the validity of the signature would matter. Fraud would have to be proved: it would not be sufficient to say "I did not sign that"; the person would need to demonstrate that a fraud has been perpetrated. Signatures Particularly today, with the ability to scan a signature it is trivially easy to affix anyone's signature to anything. However, a party to a contract is entitled to rely prima facie on the validity of the signature. A person would have to provide evidence that it was not their signature or had been affixed without their knowledge or consent. A court would look at the entire circumstances surrounding such a claim; if a person had, up until the dispute, acted as though they had signed the document then a court would probably not countenance an argument that they hadn't. It is always possible to construct contrived circumstances where this or that could happen but, in reality, they are extremely rare. Unless you are dealing with a con-artist, you can trust the signature; if you are dealing with a con-artist, you have bigger problems. See, the President has endorsed this answer:
The first question is whose law you are concerned with, since in principle you might have violated copyright law in any country, and might be sued under the laws of multiple countries. The US has a concept of "fair use" which is notoriously difficult to apply. When you are sued in the US, you can defend against the allegation by arguing certain things: telegraphically, this includes purpose and character of use, nature of the work, substantiality in relation to the whole, and effect on market. Plus there is a 5th factor to be considered, transformativeness. The court then weighs these factors to decide if the use is "fair". By reading existing case law on the topic (conveniently available from the US Copyright office) you might develop a fact-based opinion of the risk: you would be vastly better off hiring an attorney who specializes in US copyright law to do an analysis for you. Do not hire a programmer to give you legal advice (do not hire an attorney to debug code). You would "fail" on the test of substantiality in that you are copying a highly substantial portion of the original work(s). You would "win" on nature of use (research especially non-profit and commentary are the underlying purposes that drive fair use law). It's not clear how you would fare w.r.t. nature of the work, which is intended to distinguish the extremes "news report" and "literature and artistic work" where copying news is at the fair use end of the spectrum. It is not clear how you would fare on "effect on market", but probably not so badly: are you avoiding some licensing fee? Coupled with the tranformativeness consideration, you are most likely having no effect on the market, since the product that you will distribute is not the original work, but a scientific conclusion about the work. Germany has different laws, and this article would be relevant if you cared about Germany. There was a change in the law that expanded the analog of fair use pertaining to research use. That law allows 15 percent of a work to be reproduced, distributed and made available to the public for the purpose of non-commercial scientific research. That, b.t.w., does not refer to what you are planning to do (unless you also publish quotes); for personal scientific research you may reproduce up to 75 percent. Since this is a new law only a year old, you could become part of the cutting edge in testing the limits of the law. So the standard disclaimer applies: ask your attorney. But note section 60d of the law which legalized data mining, and is squarely on point: (1) In order to enable the automatic analysis of large numbers of works (source material) for scientific research, it shall be permissible to reproduce the source material, including automatically and systematically, in order to create, particularly by means of normalisation, structuring and categorisation, a corpus which can be analysed and to make the corpus available to the public for a specifically limited circle of persons for their joint scientific research, as well as to individual third persons for the purpose of monitoring the quality of scientific research. In such cases, the user may only pursue non-commercial purposes. (2) If database works are used pursuant to subsection (1), this shall constitute customary use in accordance with section 55a, first sentence. If insubstantial parts of databases are used pursuant to subsection (1), this shall be deemed consistent with the normal utilisation of the database and with the legitimate interests of the producer of the database within the meaning of section 87b (1), second sentence, and section 87e. (3) Once the research work has been completed, the corpus and the reproductions of the source material shall be deleted; they may no longer be made available to the public. It shall, however, be permissible to transmit the corpus and the reproductions of the source material to the institutions referred to in sections 60e and 60f for the purpose of long-term storage.
the first two highlighted parts seem to contradict each other. No, in this case they do not. The first highlighted portion refers to works or items produced "for or under the direction of the Company", whereas the second highlight refers to your creations that satisfy conditions (a) and (b). Where contradictions actually exist, the doctrine of contra proferentem entitles you (the non-draftsman of the contract) to adopt the portion or reasonable interpretation that favors your legal position. Also wondering how valid those statements actually are They are valid and become enforceable as soon as you sign the contract or your subsequent conduct reflects your acceptance thereof. it's a matter of privacy. So the question is what I can do or what the reality is of the situation The reality is that you are asked to sign a contract that is abusive and ridiculous. One vulnerability from describing your inventions (presumably in Appendix A) is that the employer gets "irrevocable, worldwide, etc" rights on them as soon as you "use or disclose any [items listed in Appendix A] when acting within the scope of [your] employment". This means that if instead of reinventing the wheel you share or apply any portion of your prior creations so as to enhance your productivity, you knowingly and irreversibly grant to the employer perpetual rights to those items. Legal disputes regarding APIs can become extremely intricate. And, since judges usually have no decent background on IT, even those few judges with integrity are unlikely to grasp the key subtleties that would lead to a correct ruling. "not useful with or related to any Company Interest" is very vague. The company could be interested in literally anything these days. Clauses which are too vague or excessively wide-encompassing are supposedly stricken as unconscionable, unenforceable, etc. However, I personally would foreclose upfront the risk of judicial hassle and decline the abusive contract. Legal issues aside, keep in mind that you are offering your expertise (in terms of supply &amp; demand, you are on the supply side). This fact has a less derogatory connotation than "asking for a job". Accordingly, the relation between the parties should be more leveled.
The general rule is, anything is allowed unless it is forbidden (and not that you can only do things that are expressly permitted). The logical structure of law may be a bit more challenging than procedural programming logic, since it may require a global knowledge and evaluation of the entire code (typically but not absolutely, the scope of the search for "unless otherwise" conditions is restricted to "in this chapter"). In other words, the law is a set of propositions which must all be true, and unlike actual execution of instructions in a sequence, law is to be interpreted simultaneously but hierarchically (that is: the order in which clauses are written is not significant). The appearance that the law is self-contradictory is largely illusory, though the resolution of the conflict may require a careful reading of the law and knowledge of jurisdictional hierarchy (federal law is superior to state law, which entails a particular resolution of the apparent conflict). Sometimes there are real conflicts, which usually result from using words in conflicting ways (note the practice of re-defining words "in this chapter/section/title"). The reason why law is not a science is that law is normative, not descriptive: it dictates what is allowed (a determination made through the political process), and does not attempt to discover what independently is. The reason why the legal process cannot be implemented in software is that software does not yet correctly interpret natural language, and law is written in natural language following interpretations based on judgments of what choices a reasonable would make. Perhaps if you propose a piece of law that you think is contradictory, it would be possible to show how the contradiction is illusory.
Do newer contracts superceed prior ones? It depends on whether the contracts conflict with each other. That is why many contracts contain language akin to &quot;This contract supersedes and replaces any previous or contemporaneous agreements between the parties&quot;. The parties would need to adapt such clause if the contracts are compatible and they intend to maintain them. I have seen many contracts saying tgis &quot;this will happens unless agreed in writing to do something else&quot;.However many contracts do not have this in written. The main purpose of that language is to specify that any amendments to the contract shall be in writing. That precaution makes it easier to ascertain whose version of the contract is binding, such as where party A alleges an oral amendment and party B denies that such amendment was agreed upon. Your outline of the agreements between A and Z is incomplete. At the outset, the contracts are not necessarily incompatible: The first contract does not provide a deadline for payment; it is unclear when the 2nd contract will be in force; there is not enough information to discern whether the 2nd contract is an amendment of the 1st one, or an independent agreement involving unrelated considerations; there is no indication that the 2nd contract replaces and supersedes the 1st one; and if Z is the draftsman in both contracts, the doctrine of contra proferentem could favor A's legal position. Therefore, the matter of superseding contracts depends on various factors.
It isn't uncommon to interlineate contract language, or to cross out contract language, with the initials of the parties to the contract. This is normally only done with smaller businesses, however, where there is someone who has the authority to do so. Some contracts, such as insurance contracts, for example, have to have their language approved by state regulators before they can be used and can't be modified in that fashion.
That book provides advice on legal writing; it is not a source of rules for legal writing. Rather than repeatedly identifying themselves using their full name, parties customarily refer to themselves in the third person, e.g., &quot;The defendant refused to waive his Sixth Amendment right to a speedy trial.&quot; In practice, though, pro se litigants regularly refer to themselves in the first person, and there is no formal consequence for this.
You can obviously write anything into a contract that you like. However, the laws of your country always apply, and the laws can tell you that some things are not valid, even if they are in a contract. Such things cannot be enforced. Things in a contract that are valid according to the laws can be enforced. An extrem example would be a contract saying &quot;user6726 pays gnasher $20,000, and gnasher kills user6726's spouse&quot;. Since killing your spouse is a very serious crime, even if we both signed it, and even if you paid the $20,000, you couldn't enforce me doing my side of the contract. What does it mean if we say a contract can be enforced? It means if we both sign a contract, and you do your side of the bargain, and I don't do mine, then you can take me to court. If the court agrees, the court can order me to do what the contract says, and/or to pay you damages. If I refuse, the court has ways to &quot;convince&quot; me to do my side of the bargain. For example, they could send bailiffs to my home, who take my property and sell it in an auction to pay for what I should have paid. They can not in most countries send me to jail. Sometimes one side cannot fulfil their side of the contract. If there is a contract that you build a brand new home for me, and I pay you a million dollar, but I not only don't have the money but am hugely in debt, then I can't pay you. Some people will say that you can't enforce your contract which is legally imprecise. You can take me to court etc., but you can't take money from my empty pockets. I might be in trouble though if I signed the contract knowing that I can't pay you; that could be criminal fraud and I might go to jail if a judge and jury believe that I committed fraud.