You have started an IV at the scene of a crime and left some blood on the floor. Which of the following best describes the reason why you should notify police?

A) They need to protect themselves against bloodborne pathogens during their investigation.
B) It is not necessary to inform the police of this unless there is more than one victim.
C) There may be trace evidence underneath the blood.
D) The blood may confound the investigation of blood-splatter evidence.

D