Your Grimy Smart Phone

[Ben]

I thought this was kind of interesting, if potentially ominous.

https://www.yahoo.com/tech/traces-grime-phone-reveal-life-story-study-085257687.html

 

[230RN]

Doorknobs and steering wheels, too, I'll bet.  And toilet bowl flush handles.

However, there are times when I sincerely wonder about the reliability and validity of much of forensic testing and testimony by experts.

[Hawkmoon]

https://www.youtube.com/watch?v=W6MkESn1v1w

[RevDisk]

However, there are times when I sincerely wonder about the reliability and validity of much of forensic testing and testimony by experts.

In general terms? Think of the amount of dishonesty necessary to make even a salesperson blanch. About that much validity.

[MechAg94]

In general terms? Think of the amount of dishonesty necessary to make even a salesperson blanch. About that much validity.

  Yes, very general information of a very limited value that some investigator will probably try to use to validate their assumptions about a suspect.