I was a juror in a trial 10 yrs ago where the police fielded their so-called blood splatter expert who testified he could recreate the entire crime just from casual observations about bloodstains at the scene complete with props using red dyed water to further the fraud. As soon as he was done the judge instructed us that the entire testimony be thrown out since it was blatant pseudoscience but later when I looked the police agents name up he had given the same false testimony in other trials and it was admitted as evidence without question.