[Pitfalls in the serological study of biological traces on motor vehicles]

Using the saturation method, the author examined 18 specimens of impurities from the baitom part of Skoda motor cars and buses and motor oil and lubricant. Using diagnostic sera O, anti-A, anti-B, anti-H in as many as 13 specimens of impurities an obviously non-specifik drop of the titre by 1 to 4 degrees was found. Even specimens of cooked grass saturated the diagnostic sera.