Tristar Investigation

PAGA & Class Action Witness Outreach Services

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Problems We Solve

  • Do you need to get more declarations for an upcoming motion or trial on a tight deadline?
  • Is your team overwhelmed with the number of employee witnesses that need to be contacted and interviewed?
  • Is your staff being strained by the amount of time it takes to make contact with potential witnesses?

The Tristar Solution

  • Tristar Investigation conducts comprehensive employee witness outreach projects for PAGA and class action cases
  • Our bilingual outreach team is experienced, friendly, and skilled at interviewing and vetting employees to determine their value as a witness
  • We provide detailed interview status reports that give you the information you need to evaluate the witnesses

The Tristar Process

  • Our team makes calls to your list of aggrieved employees*
  • We confirm employees are qualified to be declarants
  • If qualified, we interview them and give you the details
  • We make arrangements with them for your team to prepare declarations

If you need assistance with a better list click here.

Details: How It Works

1. Employee Lists

We start with your aggrieved employee list and our bilingual outreach team methodically makes calls to the list employees. (If your  aggrieved employee list is stale, incorrect, or non-existent, learn more about our employee list research service here.

2. Outbound Calling

We run our outbound calling campaigns using our tested, sophisticated outreach methods that increase the likelihood of contact.  The Tristar outreach team is all here in California and we make calls at various times of the day to increase the response rate.

3. Preliminary Review

Once we make contact, our team vets the employees by conducting an interview that will give you the facts you need to evaluate the witness. If we uncover information that may affect their ability to serve as a witness, we include that as well.

4. Daily Updates

We provide a detailed daily status update with all the qualified witnesses’ best contact info and time windows to reach them.  We also offer you the choice of an instant text with the contact information to your team in the event they are available.

Related PAGA Service:

Aggrieved Employee List Research

If your  aggrieved employee list is stale, incorrect, or non-existent, you can also engage Tristar to research and deliver to you a better and up-to-date aggrieved employee list.

Endorsed By

Matthew J. Matern, Esq.


“Bruce and the team at Tristar have been wonderful to work with. Beyond their professionalism, they produce excellent results, are prompt to respond, and are transparent in their communications with us.

Brian Panish, Esq.


“For over 20 years Bruce Robertson and the team at Tristar Investigation have responded promptly, identified the key issues, and can be relied on to dig deep until the task is accomplished. I would recommend Tristar to any colleague.”

Kane Moon, Esq.


“We value our relationship with Bruce Robertson and the Tristar Investigation team.  They are responsive and always keep us informed.  We can always count on them to deliver excellent results.”

Why Choose Tristar?


Tristar has been serving the California trial bar for over 35 years.  We are privileged to have conducted investigations for over 600 law firms.

Cost Efficient

As a licensed detective agency identifying witnesses for active cases, our fees can be a reimbursable case cost, helping to improve your firm’s bottom line. 


Our services help move PAGA cases along quickly and efficiently.  Our clients praise our consistent productivity, freeing up their time for other tasks.

Interested In Finding Out More?

Schedule a free online video consultation, or give us a call to learn how our services help attorneys prosecute active PAGA cases.