This information comes from several YouTube videos posted by the account AlphaWhiskeySix, which we've included below it's also supported by another video from YouTube user Gooney Ty. This method only works if you have finished the GTA 5 story campaign and are able to play as Michael afterward - so keep that in mind if you're still playing through the story.
The following method works on the PC, PlayStation 4 and Xbox One copies of GTA 5. However, in single-player story mode, a change of clothes and a stolen police cruiser can land you a job with the Los Santos Police Department. In GTA 5, there's no police academy and no applications you can fill out to work in law enforcement. Getting a job at the GTA 5 police station is a little different than it is IRL. Instead, you can be a member of law enforcement, working against those very people. When playing Grand Theft Auto 5, you don't have to be one of the characters pulling a heist.
