What's the difference between Dazu and a lawyer in Hong Kong drama?

The lawyer system in Hong Kong basically follows the British lawyer system. They divide lawyers into two types: trial lawyers and senior lawyers. The other is a junior lawyer, equivalent to a junior lawyer. His practice scope is restricted by many laws, for example, he can't defend in court, and he can only carry out some transactional lawyer business. Barristers have a wide range of practice, and are especially respected by all walks of life.