Gauteng High Court Clarifies an Important Rule of Evidence:

In an era where almost every movement, communication, and transaction leaves a digital footprint, cellphone records have become one of the most powerful tools available to investigators and prosecutors. From establishing a suspect's location at a particular time to demonstrating communication between co-accused persons, electronic data often plays a central role in criminal proceedings.

A recent judgment of the Gauteng Local Division of the High Court has provided welcome clarity on an issue that frequently arises in matters involving digital evidence: must the State call a representative from a telecommunications service provider before cellphone records can be admitted into evidence?

The Court addressed this question in Mohapi Thabo and Holworthy Garlond v The State [2026] ZAGPJHC 528.

The Legal Challenge: Is a Vodacom Witness Mandatory?

The appellants argued that the cellphone records relied upon by the prosecution should not have been admitted because the State had not called a witness from Vodacom to authenticate them. According to the appellants, the absence of such testimony rendered the evidence inadmissible.

The High Court disagreed. In reaching its conclusion, the Court drew an important distinction between hearsay evidence and electronically generated records:

• Hearsay Evidence: Traditionally concerns statements made by a person who is not called to testify.
• Electronically Generated Records: Cellphone records stand on a different footing. They are generated automatically by computer systems and network infrastructure rather than through human observation or narration.

For that reason, the Court held that the records did not constitute hearsay in the conventional sense. Instead, the focus should be on whether there is sufficient evidence to establish the reliability and integrity of the records and the manner in which they were produced.

The Court found that the State had presented adequate evidence regarding the source of the records, how they were obtained, and why they could be regarded as reliable. In those circumstances, the absence of a Vodacom representative was not fatal to the admissibility of the evidence.

A Practical Approach to Modern Investigations:

The judgment reflects a practical recognition of how modern investigations operate. Law enforcement agencies increasingly rely on electronically generated information, including:

• Call detail records and cellphone location data;
• CCTV footage and GPS information; and
• Social media records and other forms of digital evidence.

Requiring a representative from a service provider to testify in every matter involving electronically generated records would place a substantial burden on the criminal justice system. Such a requirement would not only increase costs and delays but would often add little value where the reliability of the records can be established through other competent evidence.

The Onus on the State Remains High:

Importantly, the judgment does not lower the threshold for the admission of electronic evidence. The State remains obliged to establish that the records are authentic, reliable, and accurately reflect the information they purport to contain.

Questions relating to the following remain legitimate areas of challenge where the circumstances justify such scrutiny:

• Chain of custody;
• Data integrity;
• System reliability; and
• The manner in which the records were obtained.

Key Takeaways for Legal Practitioners:

• For Prosecutors: The decision provides useful guidance on the evidential foundation required for the admission of cellphone records.
• For Defence Practitioners: It serves as a reminder that objections to digital evidence are more likely to succeed where they target the reliability or integrity of the evidence itself, rather than merely the absence of a witness from the telecommunications provider.

As technology continues to shape both criminal conduct and criminal investigations, courts will increasingly be called upon to apply traditional evidentiary principles to modern forms of information. The decision in Mohapi Thabo and Holworthy Garlond v The State represents another step in that evolution.

The judgment confirms that automatically generated cellphone records may be admitted without the testimony of a service-provider representative, provided that their reliability and authenticity have been properly established. In an increasingly digital world, that clarification is likely to have lasting significance for criminal litigation in South Africa.

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