2. Answer the following questions according to the Federal Rules of Evidence:

a. Marlene is an expert polygrapher and has spend years observing body language, speech patterns, and general affect of witnesses. She has written several articles and done a great deal of research to quantify when individuals are lying. Defense counsel wants to call Marlene as an expert to show the prosecution's chief witness lied on the witness stand. To what, if anything, will Marlene be allowed to testify? Explain.

b. Larry is a secretary to Sharon, the marketing director at BigCo. Larry takes care of Sharon's calendar and screens her calls. He tracks her whereabouts and facilitates her communication with others. He is fully aware of her business activities. When Sharon became very sick, she filed a worker's compensation case, allegeing her illness was caused by work stress. Larry is not a medical expert. He was called to testify about the high level of stress at BigCo. To what, if anything, will Larry be allowed to testify? Explain