In laymans terms...can you explain to me AMICUS CURIAE BRIEF.
Can an individual file this who was a part of a company, but not listed in a lawsuit?
Or.maybe I'm lost and am asking a totally off the wall question.
Any expertise?
No question is off the wall. Besides, lawyers love fielding questions, especially if they can charge the client for the hours spent pondering their answer (often on the golf course, of course, since fresh air invigorates thought.)
You'd need to provide more information, however. What information, exactly, does the individual intend to present and why does he or she assume that no one else can or will present it? (Also, I assume that this is a civil case in which the company is involved.) Why can't he or she provide this information to one of the two sides, so that they can present it as part of their case?
After all, the assumption in any and every court case is that the two sides themselves will submit to the court all the relevant legal arguments as well as the evidence. This makes for a much more orderly process.
Obviously, the lawyers will focus on the arguments that favor their client. However, it is possible that the case has broader implications. For example, the two parties may be arguing over who has the right to develop certain land. Neither one is perhaps particularly interested in the environmental impact that such development would have. In such a case, an environmental organization might want to bring this to the attention of the court.
Another example is if the case raises particularly arcane issues of law, in which case a professor or two might wish to be helpful to the judge.
Amicus curiae briefs are fairly rare, and usually are used at the appellate level. They can be submitted by an individual or by a group. However, there is no absolute right to submit such a brief. After all, the court does not want to get bogged down by all kinds of extraneous issues, especially if these will only confuse, complicate and delay the process. Depending on the court and the case, such briefs might require the permission of the court (and the court will want to be fairly confident that the brief will actually be of some use), or the consent of the parties involved.
Incidentally, I assume you are not speaking about interveners. An intervener is a non-party who may be affected by the judgment, and wants to be heard. For example, two parties may be arguing over property, but someone not involved in the court case may have a right to that property. He or she can then join the litigation, even if the two (original) parties object.
Can I get back to my golf game now?