What are the issues in society now that are controversial in the law

This is too much:

1, tort liability law on the issue of fair liability, there are two typical cases: one, the real case, "ashtray case" - an ashtray will passers-by smashed to death, but the tortfeasor can not be determined, the court finally The court finally ruled that there is a floor above the second floor of all the tenants bear responsibility; Second, "chopping board case" - the sky fell off the chopping board will be injured passers-by, the court finally ruled to dismiss the lawsuit, the reason is that the person responsible for the infringement of the unknown, does not meet the conditions of the lawsuit

2, Apparent agency - quite controversial - especially in the construction contract - the construction unit will be subcontracted to the construction of unqualified contractor construction, the contractor to buy building materials from the material supplier, the construction unit will be subcontracted to the unqualified contractor construction. Later, the supplier of construction materials sued the construction unit for the payment of the goods, then whether this behavior of the contractor constitutes apparent agency. This situation is very complex, if you want to write an article, you can collect some judgments or cases, a lot of practice.

3, the bankruptcy case in the right to revoke the lawsuit, but also the legislation is not clear, there are many problems. What is the status of the administrator, and so on.