Examples
A woman makes a complaint of sex discrimination against her employer. As a result, she is denied promotion. The denial of promotion would amount to victimisation.
A gay man sues a publican for persistently treating him less well than heterosexual customers. Because of this, the publican bars him from the pub altogether. This would be victimisation.
An employer threatens to dismiss a staff member because he thinks she intends to support a colleague’s sexual harassment claim. This threat could amount to victimisation.
A man with a grudge against his employer knowingly gives false evidence in a colleague’s discrimination claim against the employer. He is subsequently dismissed for supporting the claim. His dismissal would not amount to victimisation because of his untrue and malicious evidence.