I dont know why it says my inbox is full , maybe a glitch?
My application is in process . even do he didn't provide any ID or anything , they will pull out his record with the fingerprints. apparently being detained at the border its the same as being removed ( kind of derpotation ) it follows in the same class i think , he may need to file a criminal rehabilitation along with your application , I know he has not committed any crime , but in my case i was advised to file a criminal rehab along with application. google for criminal rehabilitation so u can see whats needed to file it.
I was told that the charge was a immigration charge and not a criminal charge so I dont know at this point how immigration is going to see my case.
about power of attorney to a friend in mexico , it is posible , he will have to go to the Mexican consulate / embassy in your city and they will give you instructions on how to obtain the criminal check from mexico , ( CARTA DE ANTECEDENSTES NO PENALES )