Data and methodology

A screening result is only as honest as its rules, geometry, and source data.

SafeAddress is designed to show what the system knows, what it does not know, and why an authorized reviewer may still need to investigate.

Method principles

Four rules guide every screening

These principles matter more than a polished map.

01

Case facts choose the rule path

Dates, registry applicability, supervision status, court orders, and special conditions can change what must be reviewed.

02

Boundary rules need boundary data

Where law measures property edge to property edge, address-point distances remain estimates and must be labeled that way.

03

Missing data never becomes clearance

Incomplete coverage, uncertain classification, stale records, or failed source retrieval should push a case toward review.

04

A person retains authority

The software supports research and documentation. It does not replace legal, supervisory, sheriff, court, zoning, or agency decisions.

Georgia rule structure

The offense date can change the applicable restriction categories.

Georgia statutes use different date bands and definitions. The current screening model treats those bands separately and routes unknown or disputed dates to manual review.

Special conditions may add restrictions beyond the general statutory map. A court order, supervision condition, victim-related restriction, banishment area, or agency policy can control the final decision even when no mapped conflict appears.

Screening profile inputs

Relevant date band

The act or offense date used to choose the statutory screening path.

Applicability and exemptions

Facts or legal authority that may change whether a restriction applies.

Supervision and court conditions

Additional conditions that may be more restrictive than the mapped statutory categories.

Measurement

A point on a map is not a property boundary

That distinction is central to SafeAddress.

Residential parcelRestricted parcelAddress pointClosest edges

Why the difference matters

Georgia’s statutory text describes certain distances from the outer boundary of the residential property to the outer boundary of the restricted property at their closest points.

An address geocoder usually returns a point associated with an address range or structure. Large, irregular, or multi-building parcels can make point-to-point distance materially different from boundary-to-boundary distance.

Result language

Three outcomes, none of them called approval

The words are deliberately conservative.

No mapped conflict found

The available mapped data did not show an in-range conflict.

This is not approval. Coverage, parcel geometry, local rules, case conditions, and reviewer confirmation may still be needed.

Manual review

The system cannot support a favorable result from the available facts.

Common reasons include missing dates, incomplete coverage, uncertain facility classification, point-only geometry, or special conditions.

Potential conflict

A mapped location appears close enough to require confirmation.

The reviewer should verify the source, category, geometry, applicable rule, and any exemption before deciding.

Data quality ladder

Not every source deserves the same weight

SafeAddress should preserve provenance and label the role each source played.

Source tierTypical examplesSafeAddress treatmentCan absence establish clearance?
Authoritative geometryOfficial parcel polygons and agency-maintained facility boundariesPreferred for final measurement support, subject to review and currency checksNo, not by itself
Official point recordsGovernment address points, licensed-provider addresses, agency directoriesUseful for discovery and preliminary screening; point limitations stay visibleNo
Supplemental public dataOpenStreetMap and other community-maintained location recordsUsed to surface possible locations that need verificationNo
User-submitted informationHousing listing, landlord contact, case note, supporting documentStored with submitter, timestamp, status, and review requirementNo

Official reference points

Georgia sources used to shape the current methodology

These links support research. They do not replace current legal advice or agency confirmation.

  • O.C.G.A. § 42-1-15

    Georgia Bureau of Investigation page covering restrictions for certain acts on or after July 1, 2008, including closest property-boundary measurement language.

    Open source
  • O.C.G.A. §§ 42-1-16 and 42-1-17

    GBI pages covering earlier date bands and their respective definitions and restrictions.

    Open § 42-1-16
  • Georgia Department of Community Supervision

    Published special conditions that require prior residence approval and may impose additional restrictions.

    Open source
  • Georgia Sex Offender Registry

    GBI notes that registry information changes frequently and does not carry an express or implied accuracy guarantee.

    Open source

A clearer first step

A serious pilot starts with one county and one accountable workflow.

We will document the rules, data sources, reviewer roles, and limitations before expanding coverage.