All evidence concerning the girl, the suspect's confession... all physical evidence would have to be excluded.
9 seconds sound clip from the Dirty Harry 1 movie soundboard.
You can hear this line at 01:14:27 in the Blu-ray version of the movie.
Quote context
[...]
- You should have gotten a search warrant. I'm sorry. But it's that simple.
- Search warrant? There was the girl dying!
- She was, in fact, dead according to the medical report!
- There must be something you can get him on!
- Without the evidence of the gun and the girl?
- I couldn't convict him of spitting on the sidewalk!
[...]