Answer:
Freedom enough for the criticism to be the positive one.
Step-by-step explanation:
First of all if you are at the top of one company you have to use your authority to improve the work of employees. But criticism should never be based on punctuation, elevated tone, or any kind of force.
Freedom to criticize primarily should be in form of a feedback. The way in which a employee will be criticized must be be made by comments about his work, not to criticize "a person".
Criticism must start with asking questions and listening to the employee, understanding and deciding what to do next. It should not be over-criticized, but rather small-dose criticism is recommended. It is also very important that criticism be at the right time when needed, not delayed.