Motive

 One of the threads that crime writers are very involved with is motive. Why does the villain do that? What is the reason behind the crime? We need to know. I've been told that in the real world of crime fighting not so much. Other evidence is found to be more useful.  Certainly writers and readers need to know about it. Successful books are often lauded for the memorable characters and maybe motive fits with this.

As a writer who combines two genres I read both crime and romance. I tend towards what is known as the 'cosy' end of the crime spectrum - the Agatha Christie type puzzle. Cosies are essentially domestic and so are the motives - love, hate, envy, revenge, greed - most of the seven deadly sins.  Occasionally there is a plot involving spies and state secrets - I'm thinking of Sherlock Holmes, called in when some top secret plans go missing and saving the day - but these tend to be historical settings, where the venue is often the country house party for the plans to be discussed in a meeting arranged out of the spot light. So - still on a domestic level, possibly with a locked room element added to the mix. Modern spy stories are a different matter and a genre of their own. 

I'm also an occasional reader of the more sweeping thriller - mostly American - the kind of thing written by Harlan Coben. I struck me, having just finished one of these that the motive here is something that does not really occur in a cosy - power. Often a cover up when someone who is seeking it wants to obliterate evidence of some past sin. 

It's something I am going to think about.