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Writing and presenting have made me proficient in research and discovery.


I am tenaciously knowledgeable about obscure standards, guides, best practices, and laws that could be impactful to your case. I can also ingest and model part 1, part 2 crimes, calls for service, and trends in a meaningful and graphical way.

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I will provide you with timely, communicative assessment and consultation for your case. I complete this process by gathering all the relevant written documentation, pictorial evidence, and graphical evidence into a powerful story/narrative that includes data visualization, data analytics, and pair-wise comparisons towards my unbiased opinion.


These data sets are then used to establish a persuasive testimony that builds and supports the narrative of our case. Mr Ahrens navigates hostile depositions with ease. On-point, Mr Ahrens will provide his opinion in a dynamic, collaborative way to establish rapport with jurors.


An expansive career in security consulting has enabled me to pen down several positive and negative findings. See for yourself, checkout my #OneJob file.



  • Access control and related vulnerabilities

  • Perdestrian/vehicular control 

  • Surveillance

  • Communications

  • Call boxes/call for assistance intercom

  • Alarm systems

  • Duress systems

  • Placement, functionality review

Looking for security consulting and design services?

If so, please direct your browser to my employer's website to learn more about thought leadership and the value that I can provide during the day.


Services such as

  • Benchmarking

  • Outsourcing

  • Training

  • Security, threat, and vulnerability assessments

  • Technical analysis

  • Workplace violence assessments

  • Control center design

  • Comprehensive security and telecommunications systems design

Expert Witness Security Consulting in Chicago Illinois (22).webp
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