Mealey's (December 7, 2016, 2:50 PM EST) -- SEATTLE — In a slip-and-fall case, an expert may testify as to the nature of an airport’s floors when they become wet but cannot testify about the policies and practices for detecting and cleaning up spills, a Washington federal judge ruled Dec. 2 (Evelyne Suzanne Sudre, et al. v. The Port of Seattle, et al., No. 15-0928, W.D. Wash.; 2016 U.S. Dist. LEXIS 166882)....