In this part , the author mainly discusses the following issues respectively : object of bearing punishment , active object , pattern of possession , and conduct category of possession , sphere of possessory offences . chapter 4 discusses whether the crime of huge unidentified property belongs to possessory offences 本文仅论述本罪是否属于持有型犯罪，作者认为虽符合持有型犯罪的形式定义，也与立法中的其他持有型犯罪有颇多不同，但仍应属持有型犯罪的研究范围。
The fourth part is about possessory lien . the first one is whether the provision of acquisition by good faith can be applied to possessory lien . the conclusion is that the mender and the builder of ship are entitled to acquire the ship according to the contract , and " good faith " is not necessary 首先是《物权法建议稿》中关于留置权的善意取得的规定是否适用于船舶留置权，结论是造船人或修船人对其根据造船合同或修船合同所占有的船舶或“合同另一方”交付建造或修理的船舶得享有留置权，不必非得“善意” 。
This paper has made a systematic summary on the system prevailing in china , and made a detailed study on some aspects as follows : the relationship between the system and other real guarantees ; the natures of the system ; the legal foundations of the lien , lienor ' s obligation : execution ; extinguishing and so on the paper concludes that the system is a special and separate system from those in ordinary civil law and make up a important part of maritime law , thus it should be prescribed by the special law , according to its nature and purpose , the system should apply universally to all maritime matters not only to the situations prescribed by the cmc ; the property under lien should not only be those owned by the maritime debtor , but also be those directly involved with the maritime claims , provided that those not hamper the public interests ; the maritime po ssessory lien is one of the legal real securities , not an agreed guarantee , so the maritime lienor has right to resist any other parties . anyhow , the establishment , execution , extinction of the maritime possessory lien should strictly follow the provisions stipulated by the law 本文提出：海事留置制度是一种有别普通民事留置制度的相对独立的特别留置制度，是海商法的重要内容，应当由专门的立法予以规定；海事留置权的法定性在于海事留置权依法定条件成立，依法定程序行使，并依法定的事由消灭；海事留置制度，作为一种物权担保制度，对海事债权而言应当具有普通的适用性，而不应当仅适用于《海商法》现有的规定范围；本文主张摒弃海事留置财产必须为相对债务人所有的限制，同时又主张对海事留置财产的范围予以符合公序良俗的限制；海事留置权是一种法定的担保物权，而非债权，得依法对抗第三人；在法院、国家行政机关对留置财产实行处置时，善意的海事留置权人的权利应当予以适当的保护。
Compulsive settlement of exchange is to show income of all foreign currency must sell foreign currency nominated bank , do not allow to preserve foreign currency ; apiration settlement of exchange is to show foreign currency income can sell foreign currency nominated bank , also can open reservation of foreign currency account , settlement of exchange by foreign currency income possessory oneself decide ; limitation settlement of exchange is to show foreign currency income is inside the amount of national check and ratify but not settlement of exchange , exceed limit must sell foreign currency nominated bank 强制结汇是指所有外汇收入必须卖给外汇指定银行，不答应保留外汇；意愿结汇是指外汇收入可以卖给外汇指定银行，也可以开立外汇账户保留，结汇与否由外汇收入所有者自己决定；限额结汇是指外汇收入在国家核定的数额内可不结汇，超过限额的必须卖给外汇指定银行。
The writer puts forward the applicable limitation of the priority principle of public law with respect of the impact of the priority principle of public laws on maritime lien , possessory lien on vessel , mortgage on vessel and wishes that it will have some significance in related legislation and solve related practical problems 针对公法优先原则对船舶优先权、船舶留置权和船舶抵押权等船舶担保物权的影响及中国现有立法的相关规定和实践中的不同判决结果，对这一原则在海事司法实践中的具体适用问题进行分析。
Where private property has to be acquired for a public purpose , the use of statutory powers may become necessary under the lands resumption ordinance , the roads ( works , use and compensation ) ordinance , the mass transit railway ( land resumption and related provisions ) ordinance and the land acquisition ( possessory title ) ordinance 因公共用途而须徵用私人物业时，政府可能要引用《收回土地条例》 、 《道路(工程、使用及补偿)条例》 、 《地下铁路(收回土地及有关规定)条例》及《土地徵用(管有业权)条例》所赋予的法定权力。
In order to improve the legal regime of possessory lien on vessel in chinese law , this thesis sets forth the complete concept of possessory lien on vessel and classify it . through analyzing the relation between possessory lien on vessel and possession of vessel , this thesis illustrates the concept , loss , reversion of possession of vessel . the thesis makes it clear that a maritime lien on vessel shall have priority over possessory lien on vessel and possessory lien on vessel shall have priority over a ship mortgage 本文从完善我国船舶留置权制度的角度出发，阐述了完整的船舶留置权的概念，并将船舶留置权进行了分类；通过分析船舶留置权与船舶占有的关系，指出了船舶占有的定义、分类、丧失和恢复；明确了船舶留置权与其他担保物权的受偿序位关系；论述了船舶留置权的实现问题。
