Guest Blogger: Jaclyn Nicholson: Modern Crime Scene Science

20 Jun

There are many parts of an investigation that work together to solve crimes. From forensic specialists, CSIs, coroners, to detectives and the police, it is a highly detailed and intelligent process. Some of the most important steps include lifting fingerprints, estimating the time of death, utilizing forensic entomology and DNA profiling, analyzing bloodstains and doing an autopsy.  Each step is intended to supply clues that lead to more evidence. The modern methods for solving crimes are ever-changing and continue to advance.



7 responses to “Guest Blogger: Jaclyn Nicholson: Modern Crime Scene Science

  1. Alexandra Sokoloff

    June 21, 2012 at 2:08 pm

    What a great graphic! That goes up on the wall, especially now that I’m struggling with the forensics in a new thriller. (Doug, is there a post that goes along with the visual that I’m not seeing? I don’t want to miss anything!)

    I wondered if either of you could answer or point me toward an answer to a question on analyzing mixed blood at a crime scene. I know that DNA testing can separate out the DNA profiles of various victims (and/or killer) whose blood is mixed at a crime scene. But can a crime lab do the same with blood types? That is, if there is a pool of blood or a piece of clothing that might have more than one person’s blood in or on it, can a crime lab determine that through testing blood types rather than DNA?

    Thanks so much!


    • D.P. Lyle, MD

      June 21, 2012 at 7:14 pm

      There is just the brief post and the link to the graphic which for some reason I couldn’t get to show up in the post–thus the link. Yes, blood typing can reveal mixed blood types. An excellent example is the famous Dr. Jeffrey MacDonald case. He killed his family and amazingly each member of the family had a different blood type which allowed investigators to reconstruct the scene and blow up MacDonald’s story.


      • Alexandra Sokoloff

        June 22, 2012 at 5:41 am

        Doug, THANK YOU! I’m off to research MacDonald right now, sounds like just what I need. You’re a god.


      • D.P. Lyle, MD

        June 22, 2012 at 7:47 am

        And you a Goddess. Is this a mutual admiration society?


      • Alexandra Sokoloff

        June 22, 2012 at 12:36 pm

        For ages now, of course!


      • D.P. Lyle, MD

        June 22, 2012 at 1:43 pm

        Millennia actually.


  2. sifsindia

    June 27, 2012 at 12:49 am

    SIFS INDIA provides forensic science training courses and education by online/distance mode with real court cases practice which include analysis of handwriting, fingerprint science, forensic biology, DNA Fingerprinting, Cyber Forensics, ethical hacking, Forensic Graphology,Forensic Psychology. All of the works and steps followed by us are too muck effective and helpful to solve the crime and in criminal investigation.



Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

%d bloggers like this: