Criminal law goes a long way in maintaining public peace and order. The proper understanding of criminal law is therefore absolutely necessary. My book explores the concepts of actus reus, mens rea and also provides an insight into offences against human body and property. It also provides an analytical exposition of different theories of punishment and general defences available to an accused against criminal liability. It also contains interesting case laws which gives practical orientation to the present work. The book is must for beginners in order to have conceptual clarity about Law of Crimes.