Some time back, I had read a specific phrase used to refer to situations where some "evidence" can be interpreted either way.
For example: Person A dies in a hospital and a syringe is found close to the body.
Argument 1: Person A was killed by a doctor/nurse.
Argument 2: Person A committed suicide via injection/drug overdose.
Other arguments can be made, but the gist here is: due to the ambiguity of this "evidence" it can be argued for the innocence of Person A just as well as it can be argued for Person A having harmed their self.
Q: Is there such a phrase in jurisprudential or legal thought?
If I remember correctly, Avicenna, when discussing logic, had used a specific phrase for such instances. But hoping there will be equivalent phrases in English speaking word too?