asked the Minister representing the Minister for Immigration and Citizenship, upon notice, on 30 May 2011:

(1) What measures and/or procedures are in place to prevent contraband or weapons being brought into detention centres.

(2) Since 1 January 2008, have any contraband or weapons been detected in detention centres; if so, can the following in relation to each detention centre be provided:

  (a) what items were found;

  (b) where those items were found;

  (c) on what date they were found; and

  (d) what action was taken against the person or persons identified as being involved.