According to the Wikipedia Labour law (or "labor", or "employment" law) is the body of laws, administrative rulings, and precedents which address the legal rights of, and restrictions on, working people and their organizations. As such, it mediates many aspects of the relationship between trade unions, employers and employees
Normally two parts are involved: the employer, considered generally as the strongest part, and the employee, the weakest part who as such needs more protection.
As an employee we can help you checking that the employer does not abuse his rights, in case of termination of employment we can make sure you get paid what you are entitled to; we can check the work contract before you sign, and assist you in case of sick leave, invalidity or pension.
As an employer we can counsel you in case you need to terminate an employee so you can do this in a correct and legal way, subscribe and unsubscribe your firm and/or employees, and with the payment of your social security.