Generally, a fact witness may only testify based on personal knowledge. Nevertheless, the Federal Rules of Civil Procedure allow corporations to appoint a representative to testify on their behalf, based on the corporation’s records and collective knowledge. Stephen M. Harnik and Armin Kaiser have co-written an article which analyzes how such testimony can - and cannot - be used at trial. The Article can be downloaded here. [1] [1] Originally published in volume 24, number 1