Internal and external auditors are two different types of auditors. They have different purpose in looking over the internal control procedures because they have different duties. Internal auditors are the auditors of the company which are hired to evaluate the internal control of the company. They evaluate the financial operations of the company. These auditors are the employees of the company and they are responsible to check the system of internal control to avoid and fraud and misshappening in the company.
On the other hand, the external auditors of the company are not the employees of the company and they are just hired to evaluate the financial statements of the company to check the true and fair picture of them. Now, the difference between the two is evident because internal auditors have to evaluate the internal operations of the company and prepare financial reports, while the external auditors give their opinion about the transparency and validity of the information. In this way their different purpose make their review procedure different.
On the other hand, the external auditors of the company are not the employees of the company and they are just hired to evaluate the financial statements of the company to check the true and fair picture of them. Now, the difference between the two is evident because internal auditors have to evaluate the internal operations of the company and prepare financial reports, while the external auditors give their opinion about the transparency and validity of the information. In this way their different purpose make their review procedure different.