Jurisdiction
Question 1:
  What does it mean that jurisdiction flows  from sovereignty and not from international law?
Guidance:
The question forces the student to  consider the origin and basis of jurisdiction. The book notes that jurisdiction  is derived from state sovereignty and the point here is that jurisdiction is  not something that international law gives to a state but rather that it is  inherent in sovereignty. Thus, the purpose of the law is (merely) to limit how  a state exercises its jurisdictional powers and therefore seek to ensure that  undue friction between states does not arise.
Question 2: 
  State sovereignty may speak in favor of  both a wide and a narrow authority to assert jurisdiction. Why?
  Guidance: 
  The question asks the students to consider  the different manners in which the scope of jurisdiction can be interpreted.  The book notes that respect for sovereignty may lead to conflicting  interpretations of the extent or limits of jurisdictional powers. On the one  hand, respect for the state sovereignty of State A speaks in favor of granting  that state the authority to influence all those matters that it believes is of  its interest. At the same time, though, the respect for the state sovereignty  of State B speaks in favor of limiting the authority of State A to influence  matters if the result is that State A hereby influences affairs that are also  of interest to State B.
Question 3: 
  Why is the ‘effects doctrine’ in the area  of prescriptive jurisdiction controversial? 
  Guidance:
  The  question asks the students to consider the limits of prescriptive jurisdiction  and notes that the so-called “effects doctrine” as a means of “territorial  jurisdiction” is controversial. As the book notes, the principles of  prescriptive jurisdiction is based on the premise that there exists some  link—also called a “connecting factor”—between the act that a state wants to  prescribe and the legitimate interests of the state. The “effects doctrine” is  controversial because it may reach acts committed abroad, including acts that  are lawful in the state where they are performed, whose only connection to the  prescribing state is that they have economic consequences within that state.
Question 4: 
  Can you think of some examples where a  state’s assertion of prescriptive jurisdiction on the basis of the protective  principle would be problematic? 
  Guidance:
  The question concerns the “protective  principle” according to which a state may extend its prescriptive jurisdiction  over acts or matter as long as these have a harmful or deleterious effect on  the state. The book notes that this form of jurisdiction requires that the  existence of a genuine threat to a vital state interest and it also list  a number of offenses that have historically been subjected to prescriptive  jurisdiction. The question invites the student to identify some examples of  when reliance on this form of jurisdiction would be problematic and the book  makes reference to the so-called ‘secondary boycott’ laws that were adopted in  the United Stated in the 1990s. These laws were controversial because it could  hardly be said that they were applied to acts that constituted a real threat to  a vital state interest. The students should be able to identify other examples  where a state extends its laws to acts that do not constitute such threats.
Question 5:
  What do you think is the best way to  handle cases of concurring jurisdiction? 
  Guidance:
  The question concerns the not infrequent  situation where two or more states are entitled to claim that they possess  prescriptive jurisdiction over the same acts or behavior. The book notes that  states are not legally obliged to exercise their jurisdiction in any particular  manner but that certain discretionary principles for solving jurisdictional  disputes have been adopted in some states, including the principle of comity.  It also notes that it is generally the state that has physical custody of an  offender that makes the practical determination about which state exercises  jurisdiction over the individual. The question asks the student to consider the  different approaches and discuss their advantages and disadvantages.
Question 6:
  Why is the maxim of mala captus,  bene detentusproblematic from the point of view of  international law? 
  Guidance:
  The book discusses the maxim of mala  captus, bene detentus in the  treatment of jurisdiction in relation to the issue of whether a state must  refrain from criminally prosecuting an individual that has been brought before  the courts of the state in a manner that violates international law, for  example through a violation of the prohibition against physically enforcing its  laws on the territory of another state. The maxim holds that a state can proceed with such a prosecution and  it can be said to be problematic from the point of view of international law  because it signals that the ends (securing a criminal prosecution) justify the  means (violating international law).
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