Is a defendant's determination that the prosecution has made a reasonable determination not unreasonable?

determination merely because defendant can conceive of some further step or avenue left unexplored by the prosecution. If the record reveals sustained and substantial good faith efforts by the prosecution, defendant's suggestion of further steps not taken does not automatically render the prosecution's efforts unreasonable. "'The law requires only reasonable efforts, not prescient perfection.' [Citation.]" (People v. Diaz (2002) 95 Cal.App.4th 695, 706.)