Debate the balance between effective law enforcement and personal liberty. Which of these two principles outweighs the other? Are there any situations in which personal freedoms should be

Debate the balance between effective law enforcement and personal liberty.  Which of these two principles outweighs the other?  Are there any situations in which personal freedoms should be limited to ensure that police are able to prevent crime or successfully apprehend offenders?  Why or why not?  Support your opinion.