Employers can make an offer of employment that includes a trial period of up to 90 days. Trial periods are voluntary, and must be agreed in writing and negotiated in good faith as part of the employment agreement.
An employee who is dismissed before the end of a trial period can’t raise a personal grievance on the grounds of unjustified dismissal. They can raise a personal grievance on other grounds, such as discrimination or harassment or unjustified action by the employer.
Employees on trial periods are entitled to all other minimum employment rights.