Almost all security techs, or “experts” if You wish, that I have been linked with, use encryption as a protection layer.
Well, for stolen laptop or compromised file archive, it’s may be a solution. but, lets say, You use encryption for preventing authorities from looking at it in some point for some reasons. Then You at least should be familiar with local law’s regarding encryption. For example, see the news headline about a year ago: UK: Youth jailed for not handing over encryption password or here
Same news You can find regarding other countries. In States there is Fifth Amendment that can be used as a protection point for such cases, but as we may see – not automatic and require major support of community (do You have it? 
) For example: US court test for rights not to hand over crypto keys
I spoke with local Israel lawyer, she said that Israel state also have a similar law as UK have, that allow authorities to jail suspect for not revealing the measures for decrypt data.
So, If You using encryption to have a safe place from system eye-drop, make sure they cannot force You by law to reveal it. How? Hmmmm… Use Your imagination and approve it with lawyer.
