Retrenchment & Related Questions

Retrenchment is a form of dismissal due to no fault of the employee, it is a process whereby the employer reviews its business needs in order to increase profits or limit losses, which leads to reducing its employees. Employers have regularly been reminded of the factors that render dismissals for operational requirements (retrenchments) fair and unfair. What's the right retrenchment procedure? What is fair retrenchment? What is unfair retrenchment?