Passport and PII policies

The defaulty template provided by Symantec is pretty much good for basic identification. However in scenario of company utilizing DLP control as preventing data leakage the accuraccy of these policies should be high.

Perhpas i am facing the similar challenge wherein the accuracy of the policies are not increased even while using pre-defined templates and using narrow breadth. Hence can somebody guide, share some thoughts or reference materials to increase these effectiveness of the below mentioned policies.

1) Passport (UK, US, Canada)

2) Canada Social Insurance Number

3) UK NINO

4) US SSN