Current Research Studies



Current Research Studies
Bloodstain Pattern Analysis


NIJ - Black Box Evaluation


Black Box Evaluation of 
Bloodstain Pattern Analysis Conclusions

The purpose of this study is to evaluate the accuracy and reproducibility of bloodstain pattern analysts’ conclusions.  Paul Kish, Kevin Winer, and Noblis are conducting the study under a grant from the U.S. National Institute of Justice (NIJ).

Participants will be asked to examine 100-200 bloodstain patterns over a period of approximately 4 months. The test will be conducted entirely in a web-based, digital format (no physical images or samples will be sent to the participants). The bloodstain pattern test samples comprise a range of complexity that are broadly casework representative and include patterns from both controlled collection and operational casework.

Participation is open to bloodstain pattern analysts who have conducted operational casework within the past two years — including full- and part-time analysts. Analysts from any country are welcome to participate, but must be reasonably fluent in English.

The test is expected to be available to participants in mid-late 2019.

All results will be anonymous and care will be taken so that results are not aggregated in a way that compromises anonymity. Results will be coded in a way that will allow participants to see their own anonymized results after the completion of the study, if they choose to do so.

To all who have participated, thank you for your time and effort!



Paul E. Kish

Marking Bloodstain Ellipses

Dear Colleagues,

We are currently working on a large study where we are asking for 15-20 minutes of your time to mark ellipses on 18 images of bloodstains.  We are looking for participants of all levels to better understand how well humans perform at marking bloodstain ellipses where errors are most prevalent. 

All images are marked using an online app and all that is necessary is a web browser like Chrome, Internet Explorer or Safari and a computer mouse.  No personal information will be published and all data will be aggregated anonymously.

This exercise is rather straight forward and includes a 2-minute YouTube video tutorial which you are encouraged to view before you start.  Should there be any problems, feel free to reach out to us.

Research study link:

Should you have any issues, contact us through our websites below.

Our sincerest thanks,
Craig Moore (
Eugene Liscio (



Blood Spatter Survey
Hello Everyone,
Attached is a link to the Blood Spatter study being conducted by a grad student of mine at Bowling Green State University. It should take about 5-10 minutes and is very straight forward. Please forward the link to others that you know in the forensic science and crime scene fields.

We are hoping to get 50-100  responses.  Your help is greatly valued and appreciated!

The survey closes on August 7th, 2023

Here is the link to the survey:

Thank you,

David M. Hammond

Senior Special Agent – Crime Scene Unit
Office of Ohio Attorney General Dave Yost

Cell number: 419-494-5273

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