The constabulary force operating within Am'balaar City tried to break up a brief skirmish that was occurring between Kirak Infil'a, a Jedi Master, and Darth Vader, a Sith Lord.
The initial appearance of Am'balaar City's law enforcement was in Darth Vader (2017) 4. This canon comic, released in 2017, was authored by Charles Soule and the illustrations were done by Giuseppe Camuncoli.