Scent Harassment also known as intentional scent harassment.
When researching this, don't confuse this with 'smell harassment' which is a workplace issue, most recently in the news in places like Japan concerning offensive body odors in the workplace.
'Scent harassment' concerns the use of chemicals that effect a person's olfactory system. It can be used to make someone suffer who has chemical sensitivity but also as a means of triggering a memory so as to control the person. In GS theory, essentially scent harassment can be perceived as a form of chemical warfare or psychological warfare depending on the exact circumstances.
Olfactory memories are strongest of all of our memories and in the link below it's obvious that memories or reactions can be triggered from something humans can smell.
Here is one legal case of chemical smells or scents used to harass a person referred to as "intentional scent harassment" in the case. The harassment is perhaps an example of 'workplace mobbing' and it's definitely an example of retaliation for complaining about workplace conditions.
Boardman Clark Labor Employment Updates
Disability Intentional scent harassment. A county jail dental assistant had severe reactions to scents. She requested accommodation of having air fresheners and sprays removed from break areas and restrooms. The sheriff’s office took no action. Then other employees, allegedly including the dentist she worked for, began planting cotton balls and paper towels soaked with strong scents and strong dental medications around her work area and by where she kept her coat and purse. The dentist told her she was “psycho” when she complained about the scents. The dental assistant suffered severe facial swelling, breathing difficulties, vision impairments and increased blood pressure due to the strong scents, and missed work. In spite of repeated complaints about the ongoing problems and the planted scents, the sheriff’s office failed to even investigate. The court found ample evidence for an ADA case. Mitter v. County of DuPage (N.C. Ill., 2013).The case also shows how the chemicals used to produce scents or smells can be utilized as chemical warfare either to create new disabling conditions over time or to cause the victim damage because the chemicals cause harm to the body or exacerbate a pre existing condition like chemical sensitivity, allergy or allergic reactions (anaphylaxis, hives, swelling heavy chest, trouble breathing).