Innocence is a sort of litmus test for what is good and evil in life. (faith.org.uk)
It will also serves as litmus test for full cycle of intervention adapting world best practices while considering our own local peculiarities, exhibiting the best of transparency, accountability and in full consideration of the protection and integrity of the affected persons. (nigeriapoliticsonline.com)
Perhaps the best litmus test of Lang's growing popularity is her identical twin sister, Adrian, who says she now must disappoint far more of her sibling's fans. (canadianbusiness.com)