The prosecution on Tuesday presented photographic evidence from the crime scene in the murder trial of Dutch businessman Tob Cohen, as proceedings continued before the Kibera High Court.
Appearing before Justice Diana Kavedza, the Director of Public Prosecutions (DPP), called Assistant Superintendent of Police (ASP) Beneutychus Wanjohi, a forensic expert specialising in Imaging and Acoustics, as its seventh witness.
ASP Wanjohi produced photographs documenting the crime scene and the compound where Cohen's body was allegedly recovered. The court admitted the digital images as exhibits to help illustrate the scene and support the prosecution's forensic case.
Sarah Wairimu Kamotho, Cohen's widow, is charged with his murder and remains in custody after being denied bail.
On Monday, Wairimu's defence team questioned the manner in which detectives recovered Cohen's body from a septic tank, arguing that the process may have compromised crucial evidence.
During cross-examination, defence lawyer Christine Kariuki, appearing alongside Bravin Bowry, challenged DCI officer Peter Wanjohi over his decision to allow a civilian to assist in retrieving the body from the septic tank. She argued that the civilian lacked the necessary training to handle such a sensitive operation and suggested that the involvement may have contaminated critical evidence.
In response, the officer told the court that the civilian had been authorised to participate in the recovery and acted under the direct supervision of investigators. He maintained that the civilian's involvement did not compromise the integrity of the investigation.
Wanjohi also guided the court through video footage of the search and recovery operation, identifying those present and explaining their respective roles.
He testified that those captured in the footage included police officers securing the scene, DCI detectives conducting the investigation, lawyers representing Sarah Wairimu Cohen, and advocates for the victim's family.
The officer maintained that the crime scene remained secure throughout the operation and that no unauthorised persons accessed the area or interfered with the investigation.
Cohen's body was recovered from a septic tank at his Kitisuru home in September 2019 after he had been reported missing.
The case will be mentioned for further hearing on September 28, 29 and 30, 2026.