Training is a vital component for successful implementation of EvoFIT. In addition to reference materials available on this web page, we run comprehensive training courses with assessment, or shorter application-training courses, to fit with our licence agreements.
EvoFIT PC / Laptop
EvoFIT courses are regularly available as a standard option for new users either off-site or our main training facility in Preston. Training caters for existing composite officers (2 ½ day course) or those who have not constructed composites with witnesses previously (5 day course). We provide a certificate of successful course completion.
The comprehensive (5 day) training course is run by Professor Frowd or one of the EvoFIT training team, and includes:
- Review of composite systems
- Theory behind face perception and issues related to face construction
- EvoFIT system training and software tool use
- Competence gained through extensive EvoFIT practice
- Role play interview and system practice
- Creation of identity sought (wanted) poster
- Problem-solving techniques
- Instruction and practice using a specific artwork (paint) program
- Creation of an identity sought poster
- Review of ACPO Facial Identification Guidelines
- The use of morphed, perceptual stretch and animated composites for media purposes
We have provided a series of short guides for police operatives to supplement product training and support:
- Holistic-Cognitive Interviewing (H-CI)
- Perceptual stretch and perceptual backdrop image (PBI) format
- Moving caricature (animated composite)
The following materials are available to download for EvoFIT use only. Included are instructional videos, to be used as part of practitioner training, and materials to support composite face construction with witnesses (who may also be victims of crime). It is recommended that users watch these training videos in the order listed below. Training materials are also provided as a series of PDF documents to download for further reference.
The first set of videos cover the management system used to initiate and store composites, and then (under the following section for forensic practitioners) describe in detail forensic face construction (for face-to-face interviewing and witness-use-at-home composite construction).
When permitted by your web browser, the training videos open in a new window / tab.
These chapters describe the online system for practitioner to initiate, manipulate and search EvoFIT composites. It also includes details about system access, composite usage tokens and account management.
- 1. Overview and general advise for forensic practitioners
- 2. Setting up a composite session
- 3. Using EvoFIT for interviewing witnesses directly (face-to-face)
- 4. Inviting a witness to construct a composite. This is the witness-at-home procedure: send an email containing a link to a witness to construct the face.
- 5. Construct a composite for yourself using the self-administered (witness-at-home) procedure
- 6. Further features for forensic practitioners
- 7. Additional system functions
Instructional videos for forensic practitioners
- Welcome: Overview of process (Prep., Stage 1 and Stage 2). Contains an overview of the two-stage process used to interview and construct a composite with a witness. We advise that you watch this video first.
- Initial witness interactions (Prep. and Stage 1). Information and example interaction between practitioner and witness: preparation and face-recall interview.
- EvoFIT face construction (Stage 2)
These videos form a set of ordered chapters that describe the online system from start to finish. First, we provide an overview of the function of buttons and menu items (see A. EvoFIT system layout), and set up of the page size (see B. How to set the page Zoom). Then, the recommended operational procedure is detailed.
Chapters in this section include good practice, including the parts of a face a witness should focus on, where on an image a practitioner should click, the speed at which sliders should be moved, when hair should be added, when ears should be considered for adjustment, etc.
(Note that guidance on what to say to witnesses during face construction is provided in a separate section called Using EvoFIT with witnesses (Stage 2) below.)
- A. EvoFIT system layout. Provides an overview of page layout, buttons, slider controls and menu items.
- B. How to set the page Zoom. This demo starts at database selection and moves to the subsequent page of example faces. Please note that Google has recently changed the icon used to access settings in Chrome (previously had three vertical dots).
- 1. Selecting the face database and face selection in the first generation. Also illustrates how to obtain information about each page (mouse floatover in Sidebar menu), set the user training modes (novice, intermediate and expert, for witness use) and switch between written names (novice use) and icons on buttons (witness use). The first generation through the system is the first stage to evolve the likeness of the internal features (central region) of the face.
- 2. Face selection in the Second generation. As illustrated, witnesses will usually wish to move on to Holistic tools after this second pass through the system — that is, when the internal features of the face have been evolved.
- 3. Holistic tools (main scales). These software tools enhance the global aspects of the face. The system steps through fifteen scales in sequence and the witness indicates the position of best likeness for each.
- 4. Holistic tools (feature scales). The scales are selected as required to enhance lightness of individual features and regions of the face, as indicated by the witness.
- 5. Holistic tools (main and feature scales). Both main and feature scales are available for adjustment.
- 6. Shape tool: Adjusting eyes and brows. This software tool is used to adjust individual features of the face: eyes, brows, nose, mouth, etc.
- 7. Shape tool: Adjusting nose
- 8. Shape tool: Adjusting lips
- 9. Selecting the database for hair, hat and hood. External features (hair, hood, hat) can be added once internal features have been constructed.
- 10. Candidate hairstyles and adjusting the brightness. Reviewing and altering accessories.
- 11. Further enhancements and finishing up. Illustrates use of the Shape tool for adjusting the ears — as this facial feature will not have been seen by the witness before hair is added. Also indicates how to download the composite face and close the session, to release the EvoFIT server to another practitioner.
These chapters provide advice on the use of EvoFIT from start up to session close. They include suggestion about what to say to witnesses. We also provide advise about witness needs and use of computer equipment for a facial-composite interview.
- 1. Selecting the face database and first generation through the system
- 2. Evolving into a second generation
- 3. Use of Holistic tools
- 4. The Shape tool
- 5. Selection and adjustment of hair, hat and hood
- 6. Adjusting the ears, and finishing up
- Using EvoFIT with witnesses (Stage 2): An example of what to say. This full-length video provides an example interaction between practitioner and witness using EvoFIT.
- Additional videos
- Session recovery. This video shows how to recover (recall) a session should your computer crash during face construction. You can recover any session started on a computer that has not been closed.
The following documents in PDF format are intended for practitioners who prefer to have access to training materials in a written format. Each document contains a chapter that can be downloaded for reference and, if required, printed. Practitioners are also invited to download sections from the Supporting materials listed below.
- A. Welcome: Overview of process (Prep., Stage 1 and Stage 2)
- B. Initial witness interactions (Prep. and Stage 1)
- C. EvoFIT face construction (Stage 2)
- D. Using EvoFIT with witnesses (Stage 2)
- E. Session recovery
- Verbal description sheet. This form can be used to record face recall. Use one printed sheet for each witness. See instructional videos for more information.
- Briefing on iWitness This presentation provides background information on the self-administered procedure for witnesses to construct the face using EvoFIT. It should be useful for police staff who intend to be present when a witness constructs an EvoFIT composite him or herself.
- Review of facial-composite systems. This reference chapter provides background information to facial-composite systems and associated techniques.
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