What is Ad Tunc Et Ibidem?

Legal Definition
That part of an indictment, where it is stated that the object-matter of the crime or offence " then and there being found," is technically so called. N. C. Term R. 93; Bac. Ab. Indictment, G 4.
-- Bouviers Law Dictionary
Legal Definition
In pleading. The Latin name of that clause of an indictment containing the statement of the subject-matter "then and there being found."
-- Black's Law Dictionary
Legal Definition
Then and there.
-- Ballentine's Law Dictionary