"Res judicata: general principles Res judicata is a portmanteau term which is used to describe a number of different legal principles with different juridical origins. As with other such expressions, the label tends to distract attention from the contents of the bottle. The first principle is that once a cause of action has been held to exist or not to exist, that outcome may not be challenged by either party in subsequent proceedings. This is "cause of action estoppel"
“If a legal rule requires a fact to be proved (a “fact in issue”), a judge or jury must decide whether or not it happened. There is no room for a finding that it might have happened. The law operates a binary system in which the only values are 0 and 1. The fact either happened or it did not. If the tribunal is left in doubt, the doubt is resolved by a rule that one party or the other carries the burden of proof. If the party who bears the burden of proof fails to discharge it, a value of 0 is returned and the fact is treated as not having happened. If he does discharge it, a value of 1 is returned and the fact is treated as having happened.”
“Thus, if A sues B, alleging that owing to B's negligence he has been held Liable to pay xl. to C, the judgment obtained by C is conclusive as to the amount of damages that A has had to pay C, but it is not evidence that B was negligent: see Green v. New River Co. (1), and B can show, if he can, that the amount recovered was not the true measure of damage.”
“As a matter of law, it is not open to a tribunal to rely upon a finding of fact by another tribunal; this is quite clear from the judgment of the Privy Council in the case of Calyon v. Michailaidis[2009] UKPC 34 . This confirmed that the principle in Hollington v. Hewthorn is good law, and has only been amended by statute with respect to the admissibility of criminal convictions.”
“It is common ground that as a matter of public law the Commissioners must provide the basis on which they make an assessment. In other words, they must supplement the assessment with a notification of the reasons. But this duty is grounded in public law, and not in the statute. The duty of the Commissioners under public law may be discharged by the provision of the estimates as to input and output tax on which the assessment is based. In other cases it may need supplementary narrative. Accordingly the fact that VATA refers to input tax and output tax and makes them part of an assessment for the purposes of s 73(1) does not mean that VATA treats the reasons required for an assessment as part of the assessment which cannot therefore be changed.”
“A transaction chain in an MTIC fraud typically involves a “missing” “hijacked” or “fraudulent defaulting” trader who acquires goods from another EU member state; one or more intermediary or “buffer” traders and a “broker” trader. The missing or fraudulent defaulting trader is a VAT registered entity in a transaction chain who purports to acquire goods zero-rated from another EU member state, sells them in the UK charging VAT at the standard rate, and then either disappears or deliberately fails to account for the VAT due to HMRC. A “hijacked” trader adopts the identity of a VAT registered trader and takes on the role of the fraudulent defaulting trader and does not complete or submit a VAT return and deliberately does not pay the VAT when it becomes properly due.”
“Although a case may turn out at trial not to be really complicated, it does not follow that it should be decided without the fuller investigation into the facts at trial than is possible or permissible on summary judgment. Thus the court should hesitate about making a final decision without a trial, even where there is no obvious conflict of fact at the time of the application, where reasonable grounds exist for believing that a fuller investigation into the facts of the case would add to or alter the evidence available to a trial judge and so affect the outcome of the case: Doncaster Pharmaceuticals Group Ltd v Bolton Pharmaceutical Co 100 Ltd[2007] FSR 63 ;”