I wonder if any one claim to be an expert.

Terrorism is not any operation organised on set principles or doctrine or tactics.

It all depends on the group that is organising the terrorist act.

For instance, in India, the terrorists from different organisations (foreign or domestic) have different procedures. Therefore a terrorist in J&K may not have the same tactics as that of a Maoist!

It is difficult to be an expert in a generalised meaning of the word!