Legal analysis: (1) Tort litigation with a presumption of fault. Such as tort lawsuits involving buildings or other facilities, as well as objects placed on buildings, or suspended objects that collapse, fall off, or fall causing damage to persons; lawsuits filed due to medical disputes.
(2) Infringement litigation based on the presumption of causation. Such as tort litigation for damage caused by environmental pollution; tort litigation for damage caused by unqualified product quality.
(3) Litigation where it is difficult to collect evidence and prove. For example, patent infringement lawsuits arising from product manufacturing method invention patents, and infringement lawsuits caused by dangerous behaviors causing personal injury.
(4) The other party obstructs the production of evidence.
Legal basis: "Several Provisions of the Supreme People's Court on Evidence in Civil Litigation" Article 3: During the litigation process, one party states facts that are unfavorable to itself, or expressly acknowledges the facts that are unfavorable to itself. , the other party does not need to provide evidence to prove it. If during the process of evidence exchange, inquiry, or investigation, or in written materials such as the indictment, defense, or representation, the parties clearly admit facts that are unfavorable to them, the provisions of the preceding paragraph shall apply.