This is an expression used by transport accident or TAC lawyers to describe the circumstances of the transport accident that might give rise to a finding of negligence or fault on the part of another person. For example, if a person’s driving is negligent or careless, the person may be liable to pay damages (through the TAC) to a person who is seriously injured in the accident. When lawyers use the term liability in the context of TAC common law claims they are referring to how the accident occurred.