In How to Use Experts to Prove the Plaintiff's Case, Thomas M. Demsey advises attorneys on how to find the right fit with an expert witness. In complex factual situations such as products liability cases Demsey states that "Too often the initial consideration is not well thought-out." Demsey gives tips on lines of communication with your products liability expert witness.

....experts often become, or give the appearance of, advocates for your position. This will also detract from the wtiness's impartial credibililty and is easily picked up by a jury. Your expert should be willing to concede to points that are well taken during cross-examination because this adds to his or her credibility. During the rehearsal of testimony, however, you must emphasize that the main thrust of yor expert's opinion must be consistency, and he or she must have the courage to stand by their opinions no matter the vigor of the cross-examination or the onslaught of deeming questions. This is the true test of the ability of an expert to testify and clearly separates the "wannabes" from the "real deal."

Alcohol, Drug & DUI Testing expert witnesses can save clients in a DWI case and they would not have easy access to these expert witnesses without the criminal defense attorney. If the client chooses a public defender, they will not get the best possible defense. American Chronicle.com writes on the advantages of hiring an experienced criminal lawyer.

Public defenders, no matter how experienced they are, are only Jack of all trades. It means they handle all sorts of cases and not specific ones that need to specialized skills. They do not have specialization in handling DWI cases... You would want the best possible defense for your case, and this is possible only if you hire a specialized DWI legal professional...When you hire a DWI legal representative, you get an opportunity to take advantage of their specialized knowledge of the various aspects associated with DWI cases. They know the in and out of the DWI laws and they can easily use the same to handle your specific case in the most efficient

Patrick Ball was the first expert witness called in the case against the former Serbian president, who was representing himself against mass atrocity charges at the International Criminal Tribunal for Yugoslavia. The statistics expert witness spent 10 months crunching numbers about migration patterns in Kosovo. Ball's findings suggested that hundreds of thousands of refugees who fled to Albania were spurred by the violence of Mr. Milosevic's army. CSMonitor.com also writes:

When the analysis showed the movements were neither random nor likely to follow NATO or KLA activities, Ball wrote: "The migration patterns of Kosovar Albanians are consistent with the hypothesis that there was a coordinated and organized effort to drive them from their homes." In layman's terms, the data suggested ethnic cleansing. In fact, the migration patterns matched killing patterns "so unbelievably perfectly" that he concluded that the two situations might be explained by the same external influence.