Identify the breach that involves a failure to comply with legal safety standards.

The breach that involves a failure to comply with legal safety standards is best identified as a breach of health, safety, and fire regulations. This encompasses a wide range of obligations that are designed to protect individuals' well-being and ensure that environments are safe for occupancy and use.

Non-compliance with these standards can lead to serious consequences, such as accidents, injuries, or even fatalities, and can result in legal penalties for those responsible, whether they be landlords, property managers, or businesses. It is critical for various stakeholders to adhere to health, safety, and fire regulations, as they are established by legislation to mitigate risks and enhance safety for all individuals in a given environment.

The other options, while representing various legal and ethical breaches, do not specifically relate to safety regulations. Trespass refers to unauthorized entry onto property, fraud involves deception for gain, and perjury is the act of lying under oath. None of these directly pertains to the adherence or failure to comply with safety standards as specified in the context of the question.