[RESOLVED] Case statements problem in SP

[FishGuy]

I get an incorrect syntax error in this SP

Incorrect syntax near key word case.

I think I may need to parenthasize somewhere but cant figure it out and my deadline is approaching fast, any help please.

ALTER PROCEDURE dbo.sp_GetAvailableStockInLocationByType
 
    (
        @Location integer,
        @PK_StockTypeID integer
    )
 
AS
    /* SET NOCOUNT ON */
    
    select case @PK_StockTypeID
    case  1 
     SELECT     StockItems.PK_StockItemID, CarriageStock.StockSerialNumber
           FROM         CarriageStock INNER JOIN
                                 StockItems ON CarriageStock.FK_StockItemID = StockItems.PK_StockItemID AND CarriageStock.FK_StockTypeID = StockItems.FK_StockTypeID
           WHERE     (CarriageStock.FK_StockTypeID = @PK_StockTypeID) AND (StockItems.FK_ShippingStatus = 3) AND (StockItems.FK_CurrentSiteID = @Location)
    
    case  2
    SELECT     StockItems.PK_StockItemID, RailStock.StockSerialNumber
    FROM         RailStock INNER JOIN
                          StockItems ON RailStock.FK_StockItemID = StockItems.PK_StockItemID AND RailStock.FK_StockTypeID = StockItems.FK_StockTypeID
    WHERE     (StockItems.FK_ShippingStatus = 3) AND (StockItems.FK_StockTypeID = @PK_StockTypeID) AND (StockItems.FK_CurrentSiteID = @Location)
 
    case  3
    SELECT    StockItems.PK_StockItemID, PlatformStock.StockSerialNumber
    FROM         PlatformStock INNER JOIN
                          StockItems ON PlatformStock.FK_StockItemID = StockItems.PK_StockItemID AND PlatformStock.FK_StockTypeID = StockItems.FK_StockTypeID
    WHERE     (StockItems.FK_ShippingStatus = 3) AND (StockItems.FK_StockTypeID = @PK_StockTypeID) AND (StockItems.FK_CurrentSiteID = @Location)
 
    end 
 
    RETURN