Jorge Masvidal says he ain't getting a fair shake in his aggravated battery case ... claiming in new court documents, obtained by TMZ Sports, that Colby Covington received preferential treatment from cops during their altercation in Miami last year.
In the docs, Masvidal says he has evidence that on several occasions during their confrontation on March 21, 2022, outside of a popular restaurant ... Covington was treated with "favoritism" by the Miami Beach Police Department.
Specifically, Masvidal says after the alleged attack .