Final answer:
The substantive limits established by the Bill of Rights restrict government power to protect individual liberties, including freedoms of speech, religion, and protection against unreasonable searches and cruel punishment. These limits ensure the balance of societal needs with individual rights, empowering the Supreme Court to uphold these protections at the state level as well.
Step-by-step explanation:
The concept of substantive limits refers to the restrictions placed on the powers of government by the Constitution, specifically by the first ten amendments known as the Bill of Rights. These limits protect fundamental liberties of individuals against unwarranted government intrusion. The Bill of Rights provides guidelines on areas such as freedom of speech, press, religion, assembly (First Amendment); the right to bear arms (Second Amendment); protections against quartering of soldiers (Third Amendment); and safeguarding against unreasonable search and seizures (Fourth Amendment).
These rights also encompass protections against self-incrimination and ensure the rights to a fair and speedy trial by a jury (Fifth Amendment and Sixth Amendment), as well as protection against excessive bail, fines, and cruel and unusual punishment (Eighth Amendment). Furthermore, the government is barred from actions such as passing bills of attainder, ex post facto laws, or suspending the writ of habeas corpus, which are essential to preserving personal liberty and due process of law. Consequently, the Bill of Rights shapes and restricts government authority by ensuring that citizens' basic freedoms and rights are upheld, and that governmental powers are limited to prevent abuse.
The rationale for these constraints is founded upon the desire to balance the need for public order and societal good against individual freedoms. This balance is crucial in a democratic society to ensure that the government does not overstep its bounds and that individual rights are not unjustly infringed upon. In case of disputes regarding these rights, the Supreme Court plays a pivotal role in interpreting the Constitution and deciding whether state laws are in line with the federal protections guaranteed by the Bill of Rights.