Only trained persons who are duly qualified can take up the tasks involved in the work of preservation and conservation.

Answer: Because preservation and conservation of heritage objects need specialised scientific knowledge and skill.

Objects kept in museums and archives, such as manuscripts, paintings, textiles, metal and stone objects, decay through dust, moisture, light and insects. Each material needs a different scientific method of cleaning, chemical treatment and storage. Handling by untrained persons can damage these irreplaceable objects permanently. Hence only duly qualified persons trained in history, archaeology, chemistry and conservation science can take up this work.