Consider the following independent situations for an audit for the year ended 30 June 2016:

1. Electricals Ltd makes purchase of fixed assets according to the following procedures. A purchase order is generated and approved by an account clerk based on the purchase request from the purchasing department. Then the account clerk places the order with the supplier of their choice and makes payments according to the suppliers invoice. The account clerk depreciates the assets according to the straight-line method.

2. Electricals Ltds credit officer has recently retired. The position has been unfilled for 6 months as no qualified replacement can be found.

3. Electricals Ltd failed to discover an employee embezzlement of $2,125 due to lack of bank reconciliations.

Required: Identify the control weaknesses and the impact on control risk based on the above information.