Helpful Hints
  • (1) You can search the entire content of Dean’s by phrase or by individual words. Just type your keywords into the search box and then pull down the search icon on the right and choose the option you need: search by word or by phrase or reset the content.
  • (2) Double click on a word in the content of a definition, and if the word is listed as a keyword in Dean’s, it will look that word up.
  • (3) You can use the search function to help jump the scrolling function. Simply type the first 2-3 letters into the search box then hit enter on your keyboard and the scroll will go to those Keywords that begin with those letters and allow you to scroll from there.

An expert qualified by the court and called as a witness at trial to state her opinion and its basis and to undergo cross examination. One acknowledged to have special training and knowledge of a particular subject, and testifying on that subject.

An expert witness has been defined as a person who possesses knowledge not within the ordinary reach and who, because of this knowledge is specially qualified to speak upon a particular subject. Steele v. Shepperd, 411 Pa. 481, 192 A.2d 397 (1963) It is not necessary that the witness possess all the knowledge in his special field of activity. However, the witness must have a reasonable pretension to specialized knowledge on the subject under investigation. Kuisis v. Baldwin-Lima-Hamilton Corp., 457 Pa. 321, 319 A.2d 914 (1974). 

Register or login to access full content