The initial concept of Tennessee LEO started in 2012 as an idea for an iOS application that would serve as a reference tool for law enforcement. After spending hundreds of hours on design and programming, the app began to take shape with functionality and features. Overall it took more than ten months of planning and programming before the application was able to be submitted for review. There were several rejections from Apple along the way, but Tennessee LEO finally received approval in March 2013 for the App Store and managed to stay there for five years through many additions and changes to the application. Tennessee LEO was also available as an application on Android devices for a few years during this time period as well. Although the main idea was intended to be on the Apple platform, there was a major difference in programming for Android and it was costing hundreds of dollars with each update to outsource the programming for Android versions.

In 2018 Apple started rejecting updates, and stated that information and features that had been in the application the entire time were intelectual property. There was no hope for Tennessee LEO making it much further in the App Store so it was decided to turn the application into a website and let go of the mobile applications. Tennessee LEO was then made new again as a website. This allowed changes to be made instantly and not have to wait days on a review process. The downside was that it required the user to have internet access on their device to access the features. The applications had information such as state statutes stored inside of the app so it would be accessible at any time. Unfortunatly, the website had to be shut down in 2019 due to costs associated with hosting it.

Since the shutdown of the website in 2019, multiple servers have been purchased which allow Tennessee LEO to be hosted on them and not rely on paying another company for this ability. In June of 2025, Tennessee LEO went live again. Unfortunately, some information was lost during the transition to the new site. This means that agency contact information had to be researched again so that it will contain the most accurate data for users. We hope that everyone will continue to use Tennessee LEO and pass on to others about this resource that is available to officers in Tennessee, including a brand new feature with our forum being available in 2025. If you have any comments or suggestions, feel free to contact us on the contact page.