testilie
To commit perjury (as a police officer).
informal
In Manhattan, grand jury prosecutors are urged to interview police officers separately if there is any possibility they may be fabricating evidence or about to testilie.
Where it comes from
Blend of testify + lie. Possibly a back-formation from the noun testilying, which appeared a few years earlier and is more common.
Adapted from the Wiktionary entry testilie (CC BY-SA 4.0).