Which entity can be sued in a private nuisance case according to Leakey v National Trust?

In the context of private nuisance, the occupier of the land is the appropriate entity to be sued based on the precedent set in Leakey v National Trust. This case establishes that an occupier can be held liable for the consequences of nuisances that emanate from their property, particularly when they have control over the land and the ability to prevent the nuisance from occurring.

Occupiers are typically responsible for maintaining their premises in a way that prevents harm to neighboring properties; therefore, if an occupier's actions or failures lead to a nuisance — such as allowing hazardous conditions that affect nearby residents — they can be held liable. This principle focuses on the relationship between the use of land and its impact on neighboring properties, highlighting the occupier's duty to prevent unreasonable interference with others' enjoyment of their land.

In contrast, local governments, landlords, or original tortfeasors may not always have the same level of control or responsibility over a particular nuisance situation, which is why they wouldn't be the correct entities to pursue in a private nuisance claim as emphasized in this particular legal context.