The phrase "accusatory finger" refers to pointing out or blaming someone for something, usually with a negative tone or assumption of guilt. Full definition
And I wont point accusatory fingers at anyone until more conclusive information come to light. (planet3.org)
This doesn't answer the question of where the supposedly fake memo came from, and we should not point accusatory fingers without solid evidence. (planet3.org)
While accusatory fingers are almost always pointed at politicians and workers in the public sector for topping the corruption chart, Rev. Kennedy Okosun, the Chairman of Krif Foundation, a non-governmental organisation, said people forgot that it was the private sector and citizens who offered or tempted public officials. (ghanapoliticsonline.com)