Internal auditing is an independent, objective assurance and consulting activity designed to add value and improve an organization's operations. wikipedia.org

Employee training and development are a function concerned with organizational activity aimed at bettering the job performance of individuals and groups in organizational settings. wikipedia.org

A policy is typically described as a principle or rule to guide decisions and achieve rational outcome(s). The term is not normally used to denote what is actually done, this is normally referred to as either procedure or protocol. wikipedia.org

Compliance means conforming to a rule, such as a specification, policy, standard or law. Regulatory compliance describes the goal that organisations aspire to achieve in their efforts to ensure that they are aware of and take steps to comply with relevant laws and regulations. wikipedia.org

Human resource management is the management of an organization's workforce. It is responsible for the attraction, selection, training, assessment, and rewarding of employees, while also overseeing organizational leadership and culture, and ensuring compliance with employment and labor laws. wikipedia.org

The human resource consulting industry has emerged from management consulting and addresses human resource management tasks and decisions. HR Consultants can fill two typical roles (1) Expert Resource Consultant (2) Process/People consultant. wikipedia.org

Labour law (also labor law or employment law) mediates the relationship between workers (employees), employers, trade unions and the government. wikipedia.org