Prosecutor Ron O'Brien

Directory

Divisions

  • Administration

    Edward J. Leonard, First Assistant Prosecuting Attorney - Administration

    Michael Rankin, First Assistant Prosecuting Attorney - Special Services & Projects

    Francine Matteson, Human Resources Administrator

    Nathan George, IT Director


    373 South High Street
    14th Floor
    Columbus, Ohio 43215:

    Phone: 614.525.3555

    Fax: 614.525.6103

  • Civil Division

    Jeanine Hummer, First Assistant Prosecuting Attorney

    373 South High Street
    13th Floor
    Columbus, Ohio 43215:

    Phone: 614.525.3520

    Fax: 614.525.6012

  • Criminal Division

    Janet Grubb, First Assistant Prosecuting Attorney

    373 South High Street
    14th Floor
    Columbus, Ohio 43215:

    Phone: 614.525.3555

    Fax: 614.525.6103

  • Juvenile Division

    Christopher Clark, Chief Counsel

    373 South High Street
    13th Floor
    Columbus, Ohio 43215:

    Phone: 614.525.4440

    Fax: 614.525.6072

    • Units

  • Appellate Unit

    Seth Gilbert, Chief Counsel

    373 South High Street
    13th Floor
    Columbus, Ohio 4321:

    Phone: 614.525.5504

    Fax: 614.525.6103

  • Business, Contracts and Zoning Unit

    Vacant, Director

    373 South High Street
    13th Floor
    Columbus, Ohio 43215:

    Phone: 614.525.3520

    Fax: 614.525.6012

  • Criminal Nonsupport Unit

    Janet Grubb

    373 South High Street
    14th Floor
    Columbus, Ohio 43215:

    Phone: 614.525.3555

    Fax: 614.525.6103

  • Delinquent Tax and Asset Collection Unit

    Mary Johnson, Chief Counsel

    373 South High Street
    17th Floor
    Columbus, Ohio 43215:

    Phone: 614.525.3500

    Fax: 614.525.2530

  • Diversion Unit

    Janet Grubb

    373 South High Street
    15th Floor
    Columbus, Ohio 43215:

    Phone: 614.525.3555

    Fax: 614.525.6103

  • Drug Unit

    Laurie Arsenault, Director

    373 South High Street
    15th Floor
    Columbus, Ohio 43215:

    Phone: 614.525.6347

    Fax: 614.525.6660

  • Economic Crime Unit

    Jeff Blake, Director

    373 South High Street
    15th Floor
    Columbus, Ohio 43215:

    Phone: 614.525.3555

    Fax: 614.525.6660

  • Environmental Unit

    Heather Robinson, Director

    373 South High Street
    13th Floor
    Columbus, Ohio 43215:

    Phone: 614.525.3520

    Fax: 614.525.6012

  • Grand Jury Unit

    Marla Farbacher, Chief Counsel

    373 South High Street
    13th Floor
    Columbus, Ohio 43215:

    Phone: 614.525.3555

    Fax: 614.525.6103

  • Gun Unit

    John Gripshover

    373 South High Street
    14th Floor
    Columbus OH, 43215:

    Phone: 614-525-3555

    Fax: 614-525-6103

  • Intake Unit

    Gretchen Quinn

    373 South High Street
    Columbus, Ohio 43215:

    Phone: 614.525.7388

    Fax: 614.525.3374

  • Labor and Employment Unit

    Theresa Dean, Director

    373 South High Street
    13th Floor
    Columbus, Ohio 43215:

    Phone: 614.525.7589

    Fax: 614.525.6012

  • Litigation Unit

    Amy Hiers, Director

    373 South High Street
    13th Floor
    Columbus, Ohio 43215:

    Phone: 614.525.3910

    Fax: 614.525.6012

  • Major Crimes Unit

    Jason Manning, Director

    373 South High Street
    14th Floor
    Columbus, Ohio 43215:

    Phone: 614.525.4251

    Fax: 614.525.6103

  • Special Victims Unit

    Dan Meyer, Director

    373 South High Street
    14th Floor
    Columbus, Ohio 43215:

    Phone: 614.525.3555

    Fax: 614.525.6103

  • Victim Witness Assistance Unit

    Joelle Nielsen, Director

    373 South High Street
    14th Floor
    Columbus, Ohio 43215:

    Phone: 614.525.3555

    Fax: 614.525.6103

  • Victim Witness Assistance Unit (Juvenile)

    Joelle Nielsen, Director

    373 South High Street
    14th Floor
    Columbus, Ohio 43215:

    Phone: 614.525.4440

    Fax: 614.525.6072

  • Youth Gang Prosecution Unit

    Chris Clark, Director

    373 South High Street
    13th Floor
    Columbus, Ohio 43215:

    Phone: 614.525.4440

    Fax: 614.525.6072