AustinAwol

https://www.youtube.com/albo1125
DISCONTINUED & UNSUPPORTED - COMPATIBLE WITH OLDER LSPDFR VERSIONS ONLY - FEEL FREE TO HELP UPDATE THE CODE 
Assorted Callouts is now open source. https://github.com/Albo1125/Assorted-Callouts
 
Thank you @55charlie for the awesome images!
 
With Assorted Callouts, my aim is to provide a varying experience, adding a range of differently-styled callouts for you to experience. They all have one thing in common, though, and that is a fun and sufficiently realistic atmosphere!
Current Callouts (full explanation in documentation):
Petrol/Gas Theft Pacific Bank Heist Traffic Stop Backup Required Stolen Police Vehicle Person with a Knife Solicitation Organised Street Race Illegal Immigrants in Truck Store Robberies Store Shoplifting Prisoner Transport Required Hot Pursuit More to come! For suggestions and development updates, check this thread. To get early access to new versions, participate in the Loyalty Rewards Programme. Installation instructions are provided in the ReadMe.
Lots of settings, such as keybindings, callout frequencies etc. can be modified through the INI file.
Starting from Computer+ 1.3.0.0, Assorted Callouts offers support for its callout display system. For a more realistic experience, I recommend downloading Computer+ here.
 
Support - what to do if you encounter a bug or have problems:
Watch the installation video for my modifications here. Use this tool: http://www.lcpdfr.com/files/file/9755-lspdfr-troubleshooter-by-albo1125/  Read the documentation file if you're having trouble getting a specific feature to work. Suggestions can be made here. If all else fails: Please leave a comment (not a review). Include your RAGEPluginHook.log file, located in your Grand Theft Auto V folder. Also, please provide an accurate description of what happened. This allows me to help you as fast as possible. https://www.youtube.com/albo1125

https://www.albo1125.com
DISCONTINUED & UNSUPPORTED - COMPATIBLE WITH OLDER LSPDFR VERSIONS ONLY - FEEL FREE TO HELP UPDATE THE CODE 
Police SmartRadio is now open source at https://github.com/Albo1125/PoliceSmartRadio
 
Welcome to Police SmartRadio! This script modification for LSPDFR greatly enhances your experience as a police officer by allowing you to perform many actions from your radio - which is fully customisable. 
 
Requirements - some of these are included (credits go to their appropriate authors):
LSPDFR 0.4 (not included) Albo1125.Common 6.6.3.0 or higher (included) Traffic Policer 6.13.6.2 or higher (not included) RAGEPluginHook 0.51 or higher (not included) A legal copy of GTA V version 1.0.1011.1 or higher.  
Police SmartRadio's full features are explained in the Documentation file and the showcase video above.
Installation Instructions are also included in the documentation file. An installation and customisation video tutorial can be found here:
 
 
Support - what to do if you encounter a bug or have problems:
Watch the installation video for my modifications here. Use this tool: http://www.lcpdfr.com/files/file/9755-lspdfr-troubleshooter-by-albo1125/ Read the documentation file if you're having trouble getting a specific feature to work. Suggestions can be made here. If all else fails: Please leave a comment (not a review). Include your RAGEPluginHook.log file, located in your Grand Theft Auto V folder. Also, please provide an accurate description of what happened. This allows me to help you as fast as possible.  
https://www.albo1125.com
Police SmartRadio is now open source at https://github.com/Albo1125/PoliceSmartRadio

https://www.youtube.com/albo1125
DISCONTINUED & UNSUPPORTED - COMPATIBLE WITH OLDER LSPDFR VERSIONS ONLY - FEEL FREE TO HELP UPDATE THE CODE 
Arrest Manager is now open source. https://github.com/Albo1125/Arrest-Manager
 

Welcome to Arrest Manager! This script modification for LSPDFR greatly enhances the way you can deal with your suspects and their vehicles. Are you tired of driving all the way to a jail to deal with a suspect? Would you like to be able to call for reliable prisoner transport units at any time? Arrest Manager provides this, and more. In short, a complete overhaul to the way you can deal with your prisoners!
Requirements - some of these are included (credits go to their appropriate authors):
LSPDFR 0.4.2 (not included) Albo1125.Common 6.6.3.0 or higher (included) RAGENativeUI 1.6.3.0 or higher (included) RAGEPluginHook 0.51 or higher (not included) A legal copy of GTA V (versions 1.0.1011.1 or higher1).  
Installation instructions and further feature documentation are included with the download.
 
Support - what to do if you encounter a bug or have problems:
Watch the installation video for my modifications here. Use this tool: http://www.lcpdfr.com/files/file/9755-lspdfr-troubleshooter-by-albo1125/  Read the documentation file if you're having trouble getting a specific feature to work. Suggestions can be made here. If all else fails: Please leave a comment (not a review). Include your RAGEPluginHook.log file, located in your Grand Theft Auto V folder. Also, please provide an accurate description of what happened. This allows me to help you as fast as possible.

https://www.youtube.com/albo1125
DISCONTINUED & UNSUPPORTED - COMPATIBLE WITH OLDER LSPDFR VERSIONS ONLY - FEEL FREE TO HELP UPDATE THE CODE 
Traffic Policer is now open source. https://github.com/Albo1125/Traffic-Policer
 
Welcome to Traffic Policer! This script modification for LSPDFR greatly enhances not only traffic policing, but policing in general. It sports various major features that will make your shift as a police officer much more realistic, and, above all, fun! 
Requirements - some of these are included (credits go to their appropriate authors):
LSPDFR 0.4.2 (not included) Albo1125.Common 6.6.3.0 or higher (included) RAGENativeUI 1.6.3.0 or higher (included) RAGEPluginHook 0.51 or higher (not included) A legal copy of GTA V (versions 1.0.1011.1-1.0.1604.1). Installation Instructions are provided in the ReadMe & Documentation files.
Traffic Policer's Features are explained in the Documentation files & video.
 
Support - what to do if you encounter a bug or have problems:
Watch the installation video for my modifications here. Use this tool: http://www.lcpdfr.com/files/file/9755-lspdfr-troubleshooter-by-albo1125/  Read the documentation file if you're having trouble getting a specific feature to work. Suggestions can be made here. If all else fails: Please leave a comment (not a review). Include your RAGEPluginHook.log file, located in your Grand Theft Auto V folder. Also, please provide an accurate description of what happened. This allows me to help you as fast as possible. Redistribution is prohibited.
 
https://www.youtube.com/albo1125

Emergency Lighting System V brings one of the most popular modifications ever created for a GTA title (ELS-IV) to Grand Theft Auto V. ELS-V will add a whole new dimension to  your patrols. With a fresh look and many more features than its predecessor, it's also sure to brighten up your game and satisfy the emergency lighting enthusiast in anyone.
 
DESCRIPTION
− ELS provides an alternate and incredibly in-depth way of controlling emergency vehicle lights and sounds.
− ELS requires vehicle models specifically designed to make use of its features.
− ELS includes over 200 unique lighting patterns scattered across 4 light groups and lighting formats.
 
NOTES
− Please consult the ELS USER GUIDE and other provided documentation prior to using ELS.
− As of V1.00 ELS is not compatible with any form of multiplayer.
− A visual enhancement mod is recommended to improve the appearance of ELS lights in game.
 
BASIC INSTALLATION
− A GTAV ScriptHook must be installed for any .asi modification to work. The original may be found HERE.
− Using script modifications in GTA Online can result in a temporary or permanent ban from the service.
− 1. Place ELS.asi, ELS.ini, the ELS folder, and  AdvancedHookV.dll inside your main GTA V game directory.
− 2. Download and install (a) pro-ELS vehicle model(s).
− 3. Start your game.
 
CREDITS
− ELS is coded by Lt.Caine.
− AdvancedHookV and vehicle damage feature coded by LMS.
− ELS-V testing team (alphabetical order): Albo1125, BxBugs123, GravelRoadCop, PoliceWag, and Prophet.