Mealey's (February 17, 2017, 10:30 AM EST) -- TAMPA, Fla. — An expert may testify as to his knowledge of police procedures and investigative techniques and whether they were followed by a detective in his mortgage fraud investigation of a married couple, a Florida federal judge ruled Feb. 16; however, the expert may not testify as to the ultimate legal conclusion of whether probable cause existed (Ricky Shew and Frances Shew v. William Horvath, No. 16-766, M.D. Fla., 2017 U.S. Dist. LEXIS 21748)....