Crime Scene Reconstruction

Longmere Consultants provide a full crime scene investigation and scene reconstruction service.

Longmere Consultants will provide a full Crime Scene Investigation, 3D animated walk through of the scene.

A registered Expert Witness service showing forensic dummy views, from the witnesses and defendants perspective. The Crime Scene Investigation walk through will allow independent reconstruction, showing trial issues and clarifying or dismissing points to prove.

Many cases rest on the credibility of witnesses. A "witness evidence only" lead trial may not be best evidence to secure a conviction.

Longmere provide a forensic service that not only incorporates 3D animated software, to rebuild the scene but will also incorporate forensic psychology to show if a witness was able to recall the event correctly or if  they have suffered from on scene Gorilla mist or have been Post contaminated by police, co-witnesses or the media.   

With over 26 years experience as a professional investigator, our founding Director and senior investigator, John Moses has a wealth of experience as a Crime Scene Investigator in crime scene and forensic reconstruction. Having perviously served as a Police Crime Scene Detective in serious category John is now a registered Expert Witness. John has policed in military and civil environments and has a working knowledge of how System and Estimator variables affect the reliability of testimonies.                                                                  

The value of the Forensic 3D reconstruction, is that it can be broken down in stages to allow the court (Judge & Jury) to fully understand the events as stated by the prosecution and defense. Thus allowing clarification and full transparency of the events. 

For a no obligation quotation e-mail or telephone our office on 01289 382006


Common points for Scene reconstruction.  

Most witness identification statements are recorded using the “eight points of Turnbull”

(R v Turnbull 1976).  

Rule of 15

Reliable evidence depends upon the witness being able to observe effectively. For example, accurate face recognition is dependent upon seeing the perpetrator’s face for a sufficiently long period of time (e.g. Ellis et al., 1977). Furthermore, the crime may take place in poor lighting and at some distance away. Research demonstrates that beyond a certain distance, and depending on the light, identification may be problematic.The maximum distance to ensure a witness can clearly see an event is 15 meters with a minimum illumination of 15 Lux (Know as the Rule of 15).

Estimating height and weight             

Estimates of a persons height and weight are also frequently inaccurate. Judgments of weight range from an underestimation of 98lbs (44.45 kilos) to an overestimation of 36 lb (16.33 kilograms). (Flin and Shepherd, 1986, p. 35)

Estimates of time and distance                 

Research suggests that, generally, witnesses are not very accurate in estimates of how long something lasts (temporal duration) or of distance. Witnesses may overestimate the length of events of short duration, sometimes by as much as 500%. (Block 1978).

The majority of UK police forces use forensic digital point cloud to record a crime scene. Longmere Consultants are one of a few professional service providers who have the capability to cross examine the point cloud scene.


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