05/22/2012 01:23 am ET Updated May 22, 2012

Joe Arpaio Using Taxpayer-Funded Deputy In Birther Probe

Sheriff Joe Arpaio's volunteer investigation into documents pertaining to President Barack Obama's residency status now includes the services of a taxpayer-funded deputy, according to Arpaio.

The deputy joined Mike Zullo, a volunteer member of Arpaio's cold-case posse, in Hawaii this week in part due to "security issues," according to Arpaio, and because the investigation has progressed.

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