Collateral Evidence

Collateral evidence is additional or auxiliary evidence which supports or reinforces the primary evidence of a corner point. The primary evidence is the actual corner monument or its accessories. Collateral evidence may be in the form of acts or testimony of interested landowners, competent surveyors, other qualified local authorities or some acceptable record evidence in identifying the true original position of a corner. Collateral evidence in surveying is similar to circumstantial evidence in law (by itself, it is insufficient; but an abundance of it is conclusive).