Local Policies Vs Group Policies , will it make conflict ?

Configuring the Group Policy of the local computer and configuring the Group Policy of Active Directory, will it make conflict when user logged in to their account?

I notice that even if the Active Directory Group Policy has been configured, you can still configure the Group Policy of the local computer and still has effect in the computer. So does this mean that Active Directory Group Policy can be bypassed by the Windows Operating System????

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U.L Ranmal