In relation to Hales Ltd:

• The weaknesses in the internal controls for each of the three aspects of the inventory system identified (raw materials, finished goods and changes to the master file).
• An assessment of the implications of each of the weaknesses you have identified.
• Three tests of control JDM's IT audit division could perform to assist Tyrone with verifying the effectiveness of the internal controls (assuming that JDM will be performing tests of control).
• Two Computer Assisted Audit Techniques (CAATs) that Tyrone could request the IT auditors run to assist him in testing the valuation of inventory.