Some employers only want your most recent 5 years or 10 years. However your accessible adult criminal history record can reach all the way back to your 18th birthday. That's why its called your "history."
1960s
For criminal checks ... indefinite.
As far back as they want to go. There are no limitations or laws preventing it.
Depends on what company it is
They go back as far as necessary. Yes, a criminal conviction from 20 years ago will show up.
No. Any employer (or anyone else who may wish to check) can go as far back as they wish (at least 'til your 18th birthday).
For criminal checks ... indefinite.
the records include all adult-life crimes, and serious juvenile crimes
Ten years?
They will go back as far as they can. There is no limitation and all criminal activity will be found.
As far back as they want to go. There are no limitations or laws preventing it.
Seven years.
Indefinitely!
Depends on what company it is
seven years
Usually they go back ten years, but some go back further
7 to 10 years
As long as they wish it to go. There are no limitations on a criminal check.