Rockstar is to release the Nicholson Electroplating DLC case on June 21, according to X360A who got a code for the content when attending a recent event.
The date for the extra case comes from the official site’s redeem code instruction page. The extra case will be added to the to the Arson desk and will be available for download on Xbox LIVE and PlayStation Network.
Rockstar would not provide an further details regarding the DLC at this moment.
If you haven’t bought L.A Noire, then you can order it here.