good faith 
noun [mass noun]
Honesty or sincerity of intention: the details contained in this brochure have been published in good faith...
- His sincerity and good faith are obvious as is his passionate identification with those at the bottom of the heap.
- The law presumes that the defamatory statement was made honestly and in good faith.
- If it then turns out that nothing is found, well, all we need say is that it was all genuinely done in good faith.