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ACCA Applied Knowledge · Business and Technology · Internal controls

Which one of the following is an example of a detective control rather than a preventive control?

Investigating monthly variances between budget and actual expenses is a detective control, because it happens after the costs have been incurred and highlights unusual results. Segregation of duties, passwords and locked stores all act beforehand to stop problems occurring, so they are preventive.

  1. ASegregation of duties between ordering and receiving goods
  2. BRequiring a password to access the payroll system
  3. CInvestigating variances between budgeted and actual expenses each monthCorrect
  4. DLocking the inventory store and issuing keys only to storekeepers

Explanation

Reviewing budget-to-actual variances takes place after costs are incurred and highlights unexpected results, so it detects problems. Segregation of duties, passwords and physical locks all restrict action beforehand and are preventive.

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