An interpreter should have accreditation or certification from a reputed interpretation institute. This shows that an interpreter has all the credentials and can do the job well. So, anyone who has received credentials is much less likely to make errors or mistakes while performing the job. Any of the errors in the interpretation work can again result in serious consequences for both the interpreters as well as the institute they work in. Those who have undergone professional training will not only have a very good grasp of the language requirements, but they also know about the code of ethics which should be used in their work.