A study of a human recognition by use of biometrics known as Iris Recognition is provided. Based on the technology invented by Dr. John G. Daugman, an attempt of implementing a workable system was made. Although the attempt did not succeed in every aspect, “Iris Recognition” is forecast to play a role in a wide range of other applications in which a person's identity must be established or confirmed. These include passport control, electronic commerce, entitlements payments, premises entry, access to privileged information, authorizations, forensic and police applications, computer login, or any other transaction in which personal identification currently relies just on special possessions or secrets (keys, cards, documents, passwords, PINs).