Watch my video for the theory behind spatter (and the etymology), and take a look at the YouTube video to see drops on various surfaces. I have also included three videos taken from Court TV that show a blood analysis expert, Dr. Lee, testifying at the OJ Simpson trial in 1994. This gives a good perspective on how blood evidence is given in court.
Source: (c) 2013, Biodynamics Engineering, Inc.
Source: Court TV
Source: Court TV
Source: Court TV
