Your expert witness article should be geared to the attorney who would possibly hire you. In writing for your target market, remember, attorneys are generally impatient, and want usable information that is easy to digest. Therefore, the scope of the article should be narrow with a clear focus, written in a straightforward and clear manner. The style should be as non-technical as possible. Short paragraphs and sentences are usually preferred. Short subheads should be used to break the copy in longer articles.
Prior to submission, have someone competent proof read your article. No matter how much knowledge you have, the article will be rejected if it is poorly written. Indeed, if writing is not your forte’, consider having a co-writer (or even a ghost writer) help to convey your knowledge about the subject matter.