Wanted to give it a try. I didn't even consider many of these and doubt I would've come up with such a good list even if I had a lot of time. Much less than 1 second it took to generate the response.

In a world where magic exists, laws and the legislative system would likely undergo significant adaptations to address the unique capabilities and risks presented by magic. Here are several ways in which these systems might be different, based on various assumptions about the nature and scope of magic:

1. *Regulation of Magical Practices*: Just as with professions and practices in our world, there would be regulations governing who can practice magic, how it can be learned, and where it can be used. Licenses or permits might be required for practicing certain types of magic, similar to medical licenses or driving licenses.

2. *Magic-Related Offenses*: New categories of crimes would exist, such as unauthorized enchantments, illegal curses, magical fraud (using illusions or mind control for deceit), and unlicensed necromancy. Laws would specify what constitutes a magical assault versus a non-magical one, with potentially different penalties.

3. *Enforcement and Jurisdiction*: Special law enforcement units trained in counter-magic or magical defense would be necessary to handle crimes involving magic. The jurisdiction might depend on the nature of the magic used; for example, cross-dimensional or time-altering magic could involve a higher authority or international magical council.

4. *Evidence and Investigation*: The collection of evidence might include magical means, such as truth spells, scrying (viewing distant or future events), or reviewing memories directly. However, there would also need to be laws protecting individuals against invasive magical investigations.

5. *Rights and Protections*: There would be laws to protect non-magical beings from discrimination or harm by magical individuals or entities. Similarly, sentient magical creatures or beings might have their own rights, leading to more complex legal considerations regarding interspecies interactions.

6. *Ethical Use of Magic*: Legislation would likely address the ethical implications of spellcasting, summoning, and other magical practices, including the use of magic on unwilling subjects or creating sentient beings. Regulations might prevent or restrict the use of magic that can alter someone's will, memories, or identity.

7. *Magical Contracts and Agreements*: The legal system would need to address the binding nature of magical contracts, which could have irrevocable consequences. Laws might specify how such contracts can be fairly negotiated and what remedies exist for breaking a magical contract.

8. *Intellectual Property*: In a world where spells, potions, and magical items are created, there would be intellectual property laws protecting the creators of magical inventions. This could include patents on spell formulas, copyright on magical texts, or trademarks on magical item designs.

9. *International Relations and Security*: On a larger scale, there might be international laws governing the use of magic, especially in conflicts or espionage. Treaties could limit the use of particularly destructive spells or ban the creation of magical weapons of mass destruction.

10. *Education and Public Safety*: Laws would govern the education and training of individuals with magical abilities, possibly requiring mandatory schooling to ensure that magic is used safely and responsibly. Public safety regulations would address the storage of magical materials and the construction of magically protected buildings.

In this magical world, the legal and legislative system would need to be flexible and innovative, capable of addressing the ever-evolving nature of magic and its impact on society. It would be a blend of traditional legal principles and new rules designed to manage the unique challenges posed by the existence of magic.