Express Entry Application is asking for Police clearance from USA

[akshaypatel0709]

Hello, My friend got invitation and after submitting question part in his document require , it is asking for police Clarence from USA.

He lives in Canada , he went to USA few times just for visiting but never lived there,

Why The application require Police Clarence from USA?

Please help

Thanks

 

[Islander216]

What was the longest period he stayed in the U.S?