[vox-tech] .jpg Mystery

[Bob Scofield]

I'm working for the defense on a criminal case, and have come across a 
mystery, and am asking for help solving it.

The police have given us a photo.  The time the photo was taken is important.  
The defense investigator's computer indicates that the photo was taken 
at "2107."  The investigator emailed a copy of the photo to me.  My computer 
(on both Windows and Linux) indicates that the photo was taken at "10:07 pm."  
Thus there is a one hour difference in the times reported on our respective 
computers.

My question is, how can a .jpg file give two different times for its date of 
creation?  

You may not want to read what follows.  Below I explain how the investigator 
and I got our results.

The investigator used Windows XP.  He right clicked on the .jpg and clicked 
on "properties."  That brought up a box with three 
tabs:  "General," "Summary," and "Details."  The date of time and creation 
was found in the "Details" tab.

I used Windows XP.  When I right click on "properties" I get the "General" 
and "Summary" tabs, but I do not get the "Details" tab.  All I've figured out 
how to do it is to put the cursor over the .jpg file and a yellow box comes 
up with the date and time the photo was taken.

In Linux there are a couple of different ways I can get the date and time the 
photo was taken.

Thank you.

Bob