Of course not, he is defending his client by the letter of the law. He is attacking the basis of argument, not making baseless accusations about the personal lives of the witness.
Now, had the coppers served a warrant, all of these things transpired, and the lawyer claimed space monkeys flew out of a circus elephant's behind and planted the pot plants for medical purposes. that would be a fabrication.
This isn't about lawyers insisting on due process, it's about going beyond the call of duty so they can score another W with no regards to the damage done to the judicial system.
I've seen a public defender claim his client had "Demons Inside", trying to get a minimum sentence for an attempted murderer. By the way, the defendant had stabbed my fiancé in the throat three times, attempted to solicit her murder from jail, and told prosecutors that he still wanted to kill her....on the day of his sentencing.
That's a little different then getting off on a gross violation of the 4th amendment. What was a game for this lawyer was determining whether or not my wife or I would have a fight to the death in the near future. This is serious, and it is real.
Some lawyers don't seem to appreciate the power they command, and some really don't have the integrity to handle it. It should be a noble profession.
But scumballs are entitled to the same constitutional rights as the rest of us, at least until a jury has rendered a verdict which takes away some of them. You didn't say, so I suspect the vigorous defense by this creep's attorney was to no avail. If so, that's the way the judicial system should work.