Spaces are limited for this in-person training workshop, so please download and complete the registration form here [PDF, 192 KB],  then email it to as soon as possible to secure your place (1 form per participant).  Attendance will be confirmed once minimum attendee numbers are met. 

This training is in the latest major version release of STRmix™.  Whilst forensic biologist focussed, it is open for attendance by scientific experts that act for prosecution or defense legal teams.

Please note: Should travel restrictions occur, we retain the option of reconfiguring this STRmix™ full training workshop to be remotely delivered using the Zoom virtual meeting platform ( link)).

Workshop Information:

Date:                      19 – 22 March 2024 (4 days)

Location:               New Hampshire Department of Safety

                               33 Hazen Drive

                               Concord, NH 03305

Workshop price:    $US 3,300 per participant

Overview:  This workshop will provide participants with extensive and full STRmix™ user training, covering likelihood ratios and sampling uncertainty, introduction to STRmix™, and a detailed description of the biological models and mathematics on which STRmix™ is based.  Also included are ample “hands on” sessions to allow participants to use and familiarise themselves with STRmix™ under the guidance of the instructors.

 Participants will also receive:

  • the STRmix™ User’s manual (electronic PDF)
  • the STRmix™ Operation Manual (electronic PDF)
  • the STRmix™ Implementation and Validation guide (electronic PDF)
  • a STRmix™ Training Manual (hard-copy reference of the workshop presentations)
  • a 2-month evaluation version of STRmix™
  • electronic copies of training materials (for download prior to the training)
  • a certificate of attendance (after completion).

Online training modules:  Prior to the training, participants will be provided with online access to introductory training modules via the Talent LMS e-learning platform ( link)).  For best results, these must be completed prior to the training:

Supplementary training modules covering additional material may also be provided for a limited period via the same platform.

STRmix™ Evaluation version installation: This will be a remote installation of STRmix™ shortly before the start of the workshop.  A laptop is required during the workshop and the specifications are as follows:


Minimum specifications

Recommended specifications

Intel core 2 (Quad core) processor or better

Intel core i5, i7 2.6 GHz or better



300MB free HDD space

300MB free HDD space

Minimum of 4 cores

Minimum of 4 cores

Windows 10 64-bit or above

Windows 10 Professional 64-bit or above

Software specifications:

  • Windows10 64-bit (STRmix™ is not supported by iOS)
  • MS Excel
  • Adobe Acrobat Reader


Draft schedule (subject to minor changes): 



Day 1

Day 2

Day 3

Day 4

0900 - 0930


Day 1 review

Day 2 review

Day 3 review

2. Continuous models. Why move?

14. Variability in the LR: sampling error and the HPD


19b.EXERCISE Moot court

0930 - 1000

9. EXERCISE. The MCMC game

3. Introduction to LRs 

15. Overview of STRmix™ LRs 

1000 - 1030

20. STRmix™ Intelligence tools


1030 - 1100

4. Introduction to STRmix™

1100 - 1130

5. EXERCISE. Single source and mixture examples

10. Assigning the number of contributors

16. EXERCISE. NIST mix13 

21. EXERCISE. Casework examples

1130 - 1200

1200 - 1300





1300 - 1330

6. The biological model

11. EXERCISE. Number of contributors

17. EXERCISE. NIST mix13 continued

22. Workflows

1330 - 1400

12. Population Genetic Models

1400 - 1430

7. Verbalizing LRs and hypothesis setting and EXERCISE

 18. STRmix™ Developmental Validation

23. Implementation & Validation discussion

1430 - 1500

24. Wrap Up

1500 - 1530

 13. STRmix™ output and diagnostics



19a. EXERCISE Moot Court

1530 - 1600

8. STRmix™ profile building and locus weights


1600 - 1630












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