If you buy the pass you will be able to download all the additional cases, including The Naked City (Vice) and A Slip Of The Tongue (Traffic), as well as the forthcoming Nicholson Electroplating Disaster (June 21) and Reefer Madness (July 12).
Players will also be able to expand Phelps's wardrobe, with The Broderick Detective Suit, The Sharpshooter Detective Suit, The Badge Pursuit Challenge and The Button Man Suit.
For those who prefer certain desks or a particular suit, all items can be bought individually.
The Rockstar Pass currently costs 800 Microsoft Points and $10 on the PlayStation store (when it returns). However, on June 14 the price will increase to $12/960 Microsoft Points.