EVIDENCE 3: INDONESIAN POLICE OFFICERS MANIPULATING THE POSITION OF THE STIRRER

2 months ago

The 37 Scientific Evidence of Digital Evidence Tampering on CCTV Footage at Olivier Café: The Jessica Kumala Wongso Case (2016), Carried Out by Muhammad Nuh Al-Azhar and Christopher Hariman Rianto, Who were Under the Leadership of the General Crime Director of the Jakarta Metropolitan Police, Krishna Murti, and the Chief of the Jakarta Metropolitan Police, Tito Karnavian.

Christopher Hariman Rianto deliberately split CCTV 7 footage into two segments just before Mirna Salihin arrived at Olivier café at 17:18 Local Time:

Segment 1: 15:57 – 17:17 Local Time
Frame dimensions remained full high definition (FHD, 1920x1080px) and frame rate remained at 25 frames per second

Segment 2: 17:17 – 18:39 Local Time
Dimensions of the frame were reduced to 960x576px and frame rate was reduced to 10 fps. It is in this segment that the position of the stirrer needed to be analyzed, yet it was blurred by Christopher Hariman Rianto.

Six fraudulent prosecutors Ardito Muwardi, Shandy Handika, Sugih Carvallo, Hari Wibowo, Wahyu Oktaviandi, and Maylany Wuwung conspired with fellow fraudulent CCTV video manipulator Muhammad Nuh Al-Azhar.

ANALYZED BY
DR.ENG RISMON H. SIANIPAR, S.T, M.T, M.ENG
AUTHOR, LECTURER, PROGRAMMER, AND COMPUTER VISION EXPERT

Transcript

00:00Australian resident Jessica Wongso has been charged with the murder of Minis Alihin.

00:08Police allege she poisoned her friend by adding cyanide to her coffee.

00:13Jessica is like a devil.

00:15Deep inside is something like evil.

00:22It is said that the trial of the century is true.

00:43Just before Myrna Salihin arrived at Olivier Cafe at 1718 local time,

00:48segment 1 hour 15 minutes and 57 seconds to 1717 local time.

00:54Frame dimensions remained full high definition, FHD, 1920x1080px,

01:00and frame rate remained at 25 frames per second.

01:04Segment 2 hour 17 minutes and 17 seconds to 1839 local time.

01:10Dimensions of the frame were reduced to 960x576px,

01:14and frame rate was reduced to 10 frames per second.

01:17It is in this segment that the position of the stirrer needed to be analyzed,

01:21yet it was blurred by Christopher Herriman Rianto.

01:39I can see that the coffee that was moved,

01:43or what looks like a cup of coffee, is a cup of coffee.

01:47Because here you can see the victim taking the cup and moving it towards the victim.

01:54Then he started stirring.

02:00I can see the time lapse.

02:04Taking coffee 1718.30.

02:071718.31 started stirring the coffee with the straw that was already in the cup.

02:12Because it was not visible, the movement took the straw.

02:18Analysis of the impact of downsizing frame dimensions.

02:22The impact of digital video tampering,

02:24particularly in the context of reducing frame dimensions

02:27from 1920x1080px to 960x576px,

02:32is significant and multifaceted.

02:35Firstly, the reduction in frame dimensions

02:37inherently leads to a loss of detail and clarity in the footage.

02:42Objects, movements, and actions captured in the original high-definition video

02:46may become blurred or indistinct in the downscaled version,

02:49making it difficult to accurately interpret or analyze the content.

02:53In this case, where Christopher Herriman Rianto deliberately blurred

02:56the position of the stirrer, pipette, in segment 2 of the CCTV7 footage,

03:01the consequences are twofold.

03:04Firstly, this manipulation obscures potentially critical details

03:08that could shed light on the sequence of events or individuals' actions at the cafe.

03:13Without a clear view of the stirrer's position,

03:16it becomes challenging to reconstruct the timeline

03:19or understand the context of specific moments captured in the footage.

03:23Secondly, by intentionally blurring specific elements within the downscaled footage,

03:27the integrity and credibility of the evidence are compromised.

03:31The deliberate manipulation raises questions about the motives behind altering the video

03:36and casts doubt on the reliability of the entire CCTV recording

03:40as a piece of evidence in the legal proceedings.

03:43This can have significant ramifications for the outcome of the case

03:47as it undermines the trustworthiness of the evidence presented to the court

03:51and challenges the prosecution's narrative.

03:53The impact of downsizing frame dimensions extends beyond mere visual distortion.

03:58It can impede the investigative process, distort the perception of events,

04:03and erode confidence in the justice system's ability to impartially evaluate evidence.

04:08As such, meticulous scrutiny and forensic analysis are essential to uncovering such manipulations

04:14and ensuring the integrity of the legal process.

04:21Reducing the frame rate from 25 frames per second, FPS,

04:25to 10 frames per second in the context of digital video tampering

04:29can have significant implications for the integrity and accuracy of the footage.

04:34Here are some of the key impacts.

04:361. Loss of smoothness and fluidity.

04:38A lower frame rate results in a reduction of the number of frames displayed per second,

04:43leading to a perceptible decrease in the smoothness and fluidity of motion within the video.

04:48Rapid movements or actions captured in the original footage may appear choppy or jerky

04:53when played back at a lower frame rate.

04:55This loss of smoothness can make it challenging to accurately analyze

04:59the sequence of events or movements within the video.

05:022. Potential information loss.

05:05Each frame in a video contains visual information,

05:08and reducing the frame rate effectively decreases the amount of visual data captured

05:12and presented in the footage.

05:14As a result, details within individual frames may be lost or obscured,

05:19making it difficult to discern specific details or objects within the video.

05:23Critical information that could be crucial for understanding the context or timeline of events

05:28may be compromised or omitted altogether.

05:313. Impact on perception and interpretation.

05:34The perception and interpretation of events depicted in the video may be influenced

05:38by the reduced frame rate.

05:40Certain actions or interactions captured in the footage may appear to occur more rapidly

05:45or abruptly than they did in reality due to the loss of intermediate frames.

05:49This distortion of timing and pacing can affect how viewers perceive the sequence of events

05:54and may lead to misinterpretations or inaccuracies in analysis.

05:58In summary, reducing the frame rate from 25 frames per second to 10 frames per second

06:04can undermine the fidelity, clarity, and accuracy of digital video footage,

06:09impairing its usefulness as evidence in legal proceedings.

EVIDENCE 3: INDONESIAN POLICE OFFICERS MANIPULATING THE POSITION OF THE STIRRER

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