In Spain this is quite common.<div><br></div><div>To be legally accepted a petition for example must include ID's Number included as well a the address of signatories.</div><div><br></div><div>In the last general elections, parties that were not represented in Congress or Senate, have been forced to collect signatures to backup their candidature, the official document had to include too ID's number and Zip Code of the residence.</div>
<div><br></div><div>Oficial public state bulletins everyday publishes ID's Number and residence of candidates to public exams to become functionaries.</div><div><br></div><div>Best regards</div>