A more thorough explanation:

A bill quia timet is a legal term that means "because he fears" in Latin. It is a type of equitable relief that a party can seek from a court to prevent a probable harm to their specific right or interest. It is similar to an injunction, but it only prevents future infringements of a right and cannot redress past infringements.

For example, if someone fears that their neighbor is going to build a fence that will encroach on their property, they can file a bill quia timet to prevent the neighbor from doing so. Another example is if someone is challenging the adequacy of their lawyer's representation, they can file a bill quia timet to prevent any further harm to their case.

A bill quia timet requires a showing of no available and adequate alternative remedy. This means that the party seeking relief must show that there is no other way to prevent the harm they fear.

In property law, a bill quia timet is often used in quiet title actions. This is when someone wants to establish their ownership of a property and remove any competing claims to the property.