Prosecutor 101: Witness Control Techniques

On-Demand Webinar: Prosecutor: 101 Witness Control Techniques
60-minute presentation 
1.00 CLE Credit
Don’t leave your cross-examination to chance or let a witness take over the trial. This session will walk attendees through how to best examine defense witnesses, both civilian and expert. Our instructor will discuss the rules to follow as well as effective styles to adopt – or to lose – to present your case.

Members: $50 

Non-Members: $55 

If you would like to become a member, please join here!


NDAA's mission to serve and support prosecutors and their staff. In consideration of this commitment, NDAA requires that all those in attendance of our programs currently work in or work closely with prosecution: NDAA invites prosecutors, lawyers and paralegals in local, state, tribal, federal and military government attorneys’ offices. 


Please contact

Eric Leafblad

Assistant State's Attorney Director, Continuing Legal Education and Training

Cook County State's Attorney's Office

Eric Leafblad has been an Assistant State’s Attorney for the Cook County State’s Attorney’s Office since 1995.  He is the Director of Continuing Legal Education and Training.  He conducts, reviews, coordinates and audits regular and special in-house training for more than 900 attorneys.

 Mr. Leafblad’s past assignments in the Cook County State’s Attorney’s Office include: Deputy Supervisor in the Criminal Appeals Division; the Gang Crimes Unit; the Felony Trial Division; the Preliminary Hearing/Grand Jury Unit; the Felony Review Unit; the Narcotics Prosecution Bureau; and the Criminal Appeals Division.

 He is an adjunct professor for The John Marshall Law School’s Center for Advocacy and Dispute Resolution teaching The Trial Lawyer, Trial Advocacy and Advanced Trial Advocacy. He is also an adjunct professor at DePaul University, College of Law, Master of Jurisprudence program teaching Criminal Law and Criminal Procedure.  In addition, he was an adjunct lecturer for the University of Illinois at Chicago teaching The Principles of Criminal Law and Substantive Criminal Law in the Department of Criminology, Law, and Justice. Mr. Leafblad worked as a Technical Advisor to Chicago Justice, a television legal drama about the Cook County State’s Attorney’s Office.  He read scripts, advised the props department and consulted with actors about trial work.

 Mr. Leafblad serves on the faculty for the National District Attorneys Association.  He has taught Boot Camp, Trial Advocacy I, Trial Advocacy II, Cross Examination, and The Career Prosecutor Course.  He also served as faculty for Strategic Cross-Examination and Witness Issues in Domestic Violence Cases jointly sponsored by National District Attorneys Association and the Alaskan Department of Law in Anchorage, Alaska. 

He has given presentations on the subjects of Trial Advocacy, Gang Crimes and Trial Technology for:  the Alaskan Department of Law, the Chicago Bar Association, Fortaleciendo el Estado de Derecho en las Américas, the Indiana Attorney General, the John Marshall Law School, the Kane County State’s Attorney’s Office, the Kentucky Prosecutor’s Institute, the Mississippi Attorney General, the National Black Prosecutor’s Association, the National District Attorneys Association, the National Gang Crime Research Center, the Ohio Attorney General, the United States Army, the United States Navy and the Will County State’s Attorney’s Office.

 Mr. Leafblad is a 1995 graduate of The John Marshall Law School and a 1991 graduate of the University of Illinois at Chicago.  He is a veteran of the United States Army, having served as a Cavalry Scout with the 2nd Armored Cavalry Regiment assigned to patrol the former West German border with East Germany and Czechoslovakia.

  Mr. Leafblad is the recipient of The Cook County Crime Stoppers Excellence in Law Enforcement Award, the American Legion’s Award for Excellence, the National Gang Crime Research Center’s Frederick Milton Thrasher Award for Superior Service, and the University of Illinois Alumni Association’s Constituent Leadership Award.

This course was originally recorded on September 30, 2020

NDAA is not responsible for accrediting or reporting CLE credits for this on-demand webinar. Members are responsible for ensuring their state accepts self-applications for self-study CLE credits. 

At some point during this presentation, a CLE verification poll will be launched; please make note of the verification code. You will be asked to provide the code prior to receiving the CLE Uniform Certificate of Attendance. We will save the results if state bar associations need proof of participation. 

Upon completion of your on-demand course, you will be able to access a CLE Uniform Certificate of Attendance for the recording. If your state accepts self-study credits, you can submit this certificate directly to your state bar. NDAA does not accredit recorded content or report on-demand CLE for this webinar. 

Attendees must self-submit this course for approval in their home state. All attorneys are responsible for any fees associated with CLE filing. Attorneys seeking CLE credit should contact their state bar associations for more information. General questions or additional information regarding CLE credit can be directed to

NDAA Policy 

NDAA works to provide a safe and secure environment for partners and participants. By registering for this event, you agree to abide by NDAA policies and acknowledge the disclaimer and waiver. For more information on NDAA’s policies and procedures, including our Code of Conduct, please visit our Policies page.


Recorded 09/30/2020
Recorded 09/30/2020 Don’t leave your cross-examination to chance or let a witness take over the trial. This session will walk attendees through how to best examine defense witnesses, both civilian and expert. Our instructor will discuss the rules to follow as well as effective styles to adopt – or to lose – to present your case.
Verification Code
Enter code to continue.
Enter code to continue. What is the CLE verification poll code given during the webinar? *Please note, the code words are capitalized.
9 Questions
9 Questions We invite you to participate in a quick evaluation. Your responses will help us better serve your needs and improve our programs for all our members. Please note, you will not receive your CLE Uniform Certificate of Attendance Form until you have completed this survey.
1.00 credit  |  Certificate available
1.00 credit  |  Certificate available