SELECT *

FROM dbo.DocketTB

CROSS APPLY (

SELECT MondayLastWeek = DATEADD(hh,7,CAST(CAST(DATEADD(DD,-((DATEDIFF(DD,0,GETDATE())%7)+7),GETDATE()) AS DATE) AS DATETIME))

) x1

WHERE Docket_EngFinish BETWEEN x1.MondayLastWeek AND DATEADD(DD,7,x1.MondayLastWeek)

returns no results

SELECT *

FROM (SELECT DTToday = GETDATE()) d

CROSS APPLY (SELECT NoOfDaysSinceMonday = DATEDIFF(DD,0,DTToday)%7) x1

CROSS APPLY (SELECT DTMondayLastWeek = DATEADD(DD,-(NoOfDaysSinceMonday+7),DTToday)) x2

CROSS APPLY (SELECT MondayLastWeek = DATEADD(HH,7,CAST(CAST(DTMondayLastWeek AS DATE) AS DATETIME))) x3

CROSS APPLY (SELECT MondayThisWeek = DATEADD(DD,7,x3.MondayLastWeek)) x4

returns

2013-07-18 12:03:36.55332013-07-08 12:03:36.5532013-07-08 07:00:00.0002013-07-15 07:00:00.000