Trade Marks Act (Chapter 332): Primary legislation governing trademark registration, protection, and infringement in Singapore. Defines what constitutes trademark infringement and outlines available remedies.

Trade Marks Rules: Secondary legislation providing procedural requirements and administrative guidelines for trademark matters in Singapore.

Geographical Indications Act 2014: Legislation protecting geographical indications that might overlap with trademark issues in Singapore.

Electronic Transactions Act: Legislation governing electronic communications and transactions, relevant if the cease and desist letter is to be served electronically.

Civil Law Act: Legislation containing general principles of contract law and remedies applicable in Singapore.

Paris Convention: International treaty establishing key principles for intellectual property protection, including trademarks, which Singapore is bound by.

TRIPS Agreement: WTO agreement setting minimum standards for intellectual property regulation, including trademark protection, applicable in Singapore.

Madrid Protocol: International treaty facilitating the international registration of trademarks, which Singapore is a member of.

Common Law Principles: Uncodified legal principles developed through court decisions regarding trademark protection and enforcement in Singapore.

Passing Off Doctrine: Common law principle protecting unregistered trademarks and business goodwill from misrepresentation.

IPOS Guidelines: Administrative guidelines and practices issued by the Intellectual Property Office of Singapore for trademark matters.