Are the commas necessary?

No.

(10 years in jail)

This is how I would write it, tamguatlay.

His friend, Abdul Rahman, was sentenced to ten years in prison.
His friend, Abdul Rahman, was sentenced to ten years in jail
His friend, Abdul Rahman, was given a ten-year jail sentence.

Tom

Sorry, AG -- you beat me to the punch.

Tom

tamguatlayHis friend, Abdul Rahman, was sentenced to 10 year's jail. Are the commas necessary? Thanks.

Thanks,, AG and Tom.

A typo - It should be 10 years' jail. Is it wrong?

tamguatlayIt should be 10 years' jail.

That doesn’t work either.

Thanks, AG.

Where I live, the reporters use that phrase frequently.

Aspara Gus tamguatlayIt should be 10 years' jail.That doesn’t work either.

I'm surprised that BNC gives many example sentences in which "years' jail" is used.

Is it a case of BrE differing from AmE?

Thanks.