You can explain any crime scenario by applying these techniques. For example we can take burglary, first degree murder,larceny,pilfering etc.

For instance, a murder is reported. It would be checked,whether a murder is committed or not(corpus deliciti).next,to identity the offenders. Taking finger prints and evidence from crime scene.one thing in the preliminary investigation is of immense importance that officer should not take case for granted, he should not investigate with presuppose idea.
The evidence should be matched with record of indicted murders,or murder suspects(modus operandi).
In this context, we can elaborate our answer as much as we want.


Tell me if you want more explanation, I would be please to do that.