Coming soon: the law of evidence on Spindle Law
Wednesday, July 01, 2009
The Character Evidence Rule
See Spindle Law's Evidence Module for material on the character rule a/k/a character evidence rule a/k/a propensity rule.
Now here: the law of evidence on Spindle Law
Tuesday, June 30, 2009
Do You Have to Know the Law of Evidence?
Coming soon: the law of evidence on Spindle Law
Argumentative interim summations in criminal trials
I wonder if there is a general agreement out there with the idea that arguments by counsel should be prohibited until after the submission of evidence because juries must keep an open mind.
The Second Circuit panel said: "The traditional order of events at a criminal trial-opening statements, presentation of evidence, summations, and jury instructions-has numerous purposes. Among these purposes is to enable juries to avoid forming opinions before the close of evidence and deliberations. This is reflected in trial courts' repeated instructions to juries to keep an open mind until deliberations."
Coming soon: the law of evidence on Spindle Law
Monday, June 29, 2009
Was Mr. Ricci Treated Like a Statistic?
If Ricci had been treated like a statistic, he (probably) would not have been treated like a statistic.That's because statistical analysis, properly done, might have shown that it was no great surprise that only White firefighters were eligible for a promotion to the vacant positions.
If we assume that New Haven was acting in good faith, New Haven was unduly impressed by the statistic that only White firefighters were eligible for a promotion. So if Mr. Ricci was a victim of statistical argument, the problem was perhaps that he was victimized by very bad statistical argument.
However, the Supreme Court of the United States did not do any better than New Haven did.
Just as you can't show that some set of results is suspicious just by eyeballing the statistics, you can't show that the results are non-suspicious just by eyeballing the statistics.
But that's what the Supreme Court effectively did when it rejected New Haven's characterization of the test results as "raw racial results."
The question comes down to this: Whose (statistical) ignorance do you prefer, New Haven's or the Court's?
The Court gave its own ignorance the preferred position, by putting the burden on New Haven to show that the results of the test were racially discriminatory or suspect.
The above are off-the-cuff reactions based on a partial reading of the opinion. So I may yet end up retracting, or eating, my off-the-cuff sentiments.
Coming soon: the law of evidence on Spindle Law
Waiting for Ricci...
N.B. For what it's worth: I remain a strong supporter of Judge Sotomayor. Her perspective would be good for the Court. I would also emphasize that her experience includes experience as a prosecutor and as a commercial litigator. She has worked (in that hackneyed but apt phrase) in the trenches. This gives her an understanding of "procedure in action" that the other Justices (with all due respect) lack.
Coming soon: the law of evidence on Spindle Law
Sunday, June 28, 2009
Explanatory Notes in MarshalPlan 2.8 about Role of Personal Attributes for Credibility Assessment
Note: The third card of the downloaded credibility stack of MarshalPlan 2.8 seems to be distorted. Try using "Revolution Player" rather than the standalone stack "Network.exe" to run the credibility stack. In the meantime, I will try to correct the problem. Thanks for your patience. But even with the distortion, you can push buttons on the third card of the main credibility stack to get to the substacks, which explain what's what in credibility assessment.
Coming soon: the law of evidence on Spindle Law
MarshalPlan 2.8 Now Has a Witness Credibility Stack
The new credibility stack and its substacks are relatively primitive. But I believe they may nevertheless be useful for teaching purposes, and a few addled trial lawyers may also find them interesting. (I will add detailed commentary later. Most of the spadework has already been done by David Schum.)
To retrieve the new version of MarshalPlan just follow the instructions given below. Many thanks.
Years ago David Schum and I developed the notion of an evidence marshaling system. We laid out the underlying theory of this evidence marshaling system in A Theory of Preliminary Fact Investigation. We developed a kind of computer embodiment, or computer-based expression, of our idea of an evidence marshaling system. Eventually we decided to call our system "MarshalPlan".
More than one year ago I released MarshalPlan 2.2. This moniker -- MarshalPlan 2.2 (now 2.8) -- amounts to a bit of self-mockery: MarshalPlan 2.x is not a prototype of a working application suitable for "real-time" use. Far from it! However, MarshalPlan 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, and 2.8 are more than mere scratchings on a page that state in words (text) how a MarshalPlan application might work.
MarshalPlan 2.8 is a software application based on the user-friendly programming language Revolution Enterprise(tm). This application -- MarshalPlan 2.8 -- illustrates -- with images, fields, buttons (links), and so on -- how a computer program to support the marshaling and assessment of evidence in preparation for possible trials and also for the conduct of trials, might work.
To retrieve MarshalPlan 2.8 click on this link. Download all of the Revolution stacks, including the "Revolution Player," into a single folder on your computer. These stacks all have the suffix "rev". (To make these stacks run properly you need a "Revolution Player." If your computer doesn't use a Windows operating system, go here and download the version of the player (Mac OSX or other) that you need.) Open the Revolution Player and then drag-drop the "Network.rev" icon and all other "rev" stacks onto the "Revolution Player" icon; or run the Revolution Player and, using the Player, open all of the "rev" stacks. You should be in business now: the buttons, or links, in the various stacks should allow you to navigate between the stacks as well as within the stacks.
I am very pleased to report that MarshalPlan will be available this fall as an application that runs directly on the web, in your browser. This will make it much easier for you (and my Fact Investigation students) to try out the software; you will only need to download a plug-in.
SOME IMPORTANT CAVEATS: The software application that you will retrieve by clicking on the links found above has serious gaps and limitations, including the following:
1. In the application itself there is little explanation of the theory underlying the evidence marshaling strategies that are embedded in MarshalPlan 2.8.To get that some of that theory and those explanations (but not all of them) you will have to (i) read the article I mentioned earlier, A Theory of Preliminary Fact Investigation, and (ii) wander about my personal web site. If you want a truly comprehensive theory-laden explanation of MarshalPlan, you will have to invite me to give a leisurely talk (preferably on a tropical island or some other attractive venue).2. A few buttons and links don't work. When that happens, try other buttons and links. (Otherwise resort to expletives. You have my permission.)3. One or two important stacks are missing. The most important missing stack is the one that would deal with evidential argument from evidence to factual propositions and with the assessment of the probative value of the evidence -- in particular, an "Evidential Argument & Probative Value" stack. For a discussion of the methods that might be used for this purpose, see Special Issue on Graphic and Visual Representations of Evidence and Inference in Legal Settings, 6 Law, Probability and Risk Nos. 1-4 (Oxford University Press, 2007).
4. MarshalPlan 2.8 is not set up to be linked to a database. This is a most serious deficiency.
But -- in my defense -- I repeat: MarshalPlan 2.8 is NOT a prototype of a working software application, suitable for use in real-time contexts.MarshalPlan is, instead, an elaborate visual illustration of some of the directions that development of software for marshaling evidence in legal settings should take. (Having said that, I will now add that MarshalPlan is creeping ever closer to being something akin to a genuine software prototype suitable for real-world and real-time use. The biggest bridge will be crossed when I manage to make the forthcoming "web-resident" version of MarshalPlan database-friendly. I must also find a way to standardize many of the fields in which users are invited and expected to add "data" such as dates and names. Give me about six months.)
Coming soon: the law of evidence on Spindle Law