Expert witness: Ten times, and in controlled circumstances, a single drop of the defendant' s blood was allowed to fall onto the fabric  And in all ten cases, the stained area was much less than the expected 9  5 cm2  In fact, the stained area was always between 4  5 and 4  8 cm2  I conclude that a single drop of the defendant' s blood stains much less than 9
5 cm2 of the fabric
In an eleventh test drop of the defendant's blood, the area stained was also less than 9. 5 cm2 -- this time staining 9. 3 cm2.