Skills for Tribal Pretrial Services Practitioners: Interviewing Techniques
Developed by the American Probation and Parole Association, this online self-paced training course provides tribal community corrections professionals with an overview of the interview process, key interviewing skills, and ethical responsibilities of the pretrial interviewer. 
https://appa.academy.reliaslearning.com/Skills-for-Tribal-Pretrial-Services-Practitioners-Interviewing-Techniques--APPA-STPSPIT-G.aspx

The NIC Learn Center has classes on writing and grammar, computer skills, communication, project management, and corrections topics. All that it needed is to create a free account.
Click here for NIC Learning Center Registration

Cognitive-Based Communication Skills with Individuals on Community Supervision
Community supervision officers are tasked with facilitating positive changes in the behavior of people who, for the most part, are reluctant to change their behavior. Many of the individuals on supervision are committing crimes or are involved in antisocial behavior because their criminal or antisocial behavior is justified by their way of thinking. In other words, antisocial thinking leads to antisocial acts. This course will provide supervision staff with background information on some of the common thinking errors and how antisocial thinking patterns drive criminal, delinquent, or disruptive behavior. You will also be introduced to four cognitive-based skill strategies that you can use to improve your interpersonal communication with individuals you supervise, leading to more positive outcomes. In addition to presenting information, this course includes interactive exercises and case studies to help reinforce what you learn. 
https://appa.academy.reliaslearning.com/Cognitive-Based-Communication-Skills-with-Individuals-on-Community-Supervision--EL-CBCOMM-CORR-APPA.aspx