@TreadRed wrote the Backup+ and Jurisdictions+ scripts and made them available around the end of February 2019.
@CaptConfuzed started assisting in beginning of March, and has been helping with bits and pieces since then.
Jurisdictions+ was written to enhance the whole LSPDFR experience, adding another layer of realism and to extend the customizations already available through LSPDFR, EUP and UltimateBackup.
Originally only one xml option, grew into 5 and then 6; with minor tweaks and fixes added along the way.
Jurisdictions+ really allows you to choose what agencies you want on the map, to choose their vehicles, to use EUP uniforms and to have those customized cars and peds patrol and respond in their relevant jurisdictions (areas.)
Backup+ was released to enhance UltimateBackup, by adding EUP uniforms to backup.
At some point during all of the tweaks and expanding of options, we decided to create a team, and called it SAModding. No prizes for guessing, it stands for San Andreas Modding 😜 (We wanted to pay homage to Grand Theft Auto, and the State of San Andreas!)