DISCOVERY SERVICES INVESTIGATIONS


Criminal Defense Investigations

Phone: 413.788.4988
* Approved CPCS vendor
* Board-certified Criminal Defense Investigator

Defense Investigations:

I'm a board-certified defense investigator with a history of successful investigations for anything from A&B to sex-related charges involving minors. I've conducted homicide investigations -including leading a multi-agency investigation that crossed state lines.
I am thorough, diligent and creative when it comes to uncovering the facts that supporting your client's innocence, and negate or reduce the charges.
I invite you to read the testimonials from some local attorneys.

MA investigator

Thorough, diligent and creative.

Find the witnesses police haven't talked to, and dig up the facts by talking to the people they haven't.

Establish reasonable doubt.

Officers may make errors; exculpatory evidence can be found; witnesses can be impeached.

Any court. Anywhere in MA.

From the Berkshires to Cape Cod.
Any district or superior court.
Anywhere in MA.

Other Attorney services:

A full-service investigative agency, we offer other services to our clients:

Interviews and Statements:

I have over 30 years experience conducting interviews and taking written and recorded statements.

In addition, I've conducted hundreds or written and recorded statements for the nation's largest insurers.

Thoroughness in preparation is essential, as we may only get one shot at an important interview.

Questions are prepared in advance, and shared with the attorney, to assure all relevant lines of inquiry are properly and thoroughly addressed.

Exculpatory/impeachment research:

Does their witness have credibility? Is their testimony impeachable?
Do those giving testimony have a reputation for honesty in the community?
Is there any historical indication of their character?
An inquiry extending beyond CORI can yield the kind of information you need to impeach their testimony.
Or at least show reasonable doubt.

Locates and Skip-Tracing

Police may not interview everybody. Those they do interview, may not be very forthcoming.
Additional witnesses can be identified though means other than the normal course of discovery.
Discovery Services Investigations has had great success locating and interviewing witnesses and other parties.
Mostly because information sources have been amassed over my many years as an investigator.

Miscellaneous

Appellate investigations: Missing crucial witnesses or other investigative shortcomings need to be identified.
A fresh review by a highly experienced defense investigator, can make all the difference to your success.

Trial preparation and litigation support: The more information you have, the more confident you can be in the defense of your client.
Collecting witnesses background info can show possible causes for impeachment.
Scene investigations with photos, diagrams and measurements are conducted at the equivalent times of day (and similar weather when necessary) to reproduce a more accurate re-creation.
Insurance defense investigations, accident scene investigations and analysis, document retrieval and more is available as you need it.

About DSI

Hello...I'm Keith Walker, owner of Discovery Services Investigations.
I'm a 20+ year licensed private investigator and
a board-certified criminal defense investigator.
I specialize in criminal defense. It's something of a passion for me, so it's the main focus of my career.
I feel grateful for the privilege of helping attorneys keep their clients from being wrongfully punished.

Attorney Testimonials

MA criminal defense

"Keith is a great investigator. Thorough, reliable, and keeps you in the loop. I whole-heartedly recommend him to anyone who needs an investigator"

Matthew Peterson, Esq. Criminal Defense attorney, Boston, MA.

Hampden County

"I have been a criminal and person injury attorney for almost 20 years.
Beginning sometime in 2009 I believe, when the investigator I had previously been using retired, Keith Walker has and continues to provide exceptional services for our law firm's clients. I would recommend him to anyone in need of an investigator."

Robert J. Rzeszutek Esq, Criminal defense attorney, Springfield, MA.

western MA

"I have been a criminal defense investigator fort over 40 years. Approximately 10 years ago I had the pleasure of meeting Mr. Walker. Since that time, Discovery Services has been my sole investigative agency of choice.
I found Mr. Walker to be an effective criminal defense investigator. His investigations are very thorough and extremely well-planned and executed. His work ethic is commendable. He has conducted hundreds of investigations for my office over the last 10 years and I highly recommend him."

William F. Higgins, Esq., Criminal defense attorney, Springfield, MA.

Masssachusetts investigator

"I am a criminal defense attorney. I have utilized Keith and Discovery Services multiple times over the last four years and have been thoroughly satisfied with his assistance. Keith is very helpful and does excellent work. He also is willing to offer his input during the assignment which helps solidify other avenues to discover within the investigation."

Judy Cox, Esq, Criminal defense attorney, Springfield, MA.

defense investigations

" Mr. Walker was initially recommended to me in 2018 by my mentor, as an investigator with a reputation for ethics and thoroughness. I have been using Mr. Walker for all my criminal defense investigations ever since. I have found Mr. Walker to be ethical, thorough, and insightful; his work is of high quality. He is knowledgeable and well spoken. I believe Mr. Walker’s investigative skills have played an essential part in getting many of my cases resolved, favorably. I would not hesitate to recommend Mr. Walker in any matter regarding criminal defense . "

Deirdre Gleason Esq.. Criminal Defense attorney, Greenfield MA.

CPCS defense investigator

"As a criminal defense attorney, I have worked with several investigators over the years, and Keith Walker was, by far, the most reliable and thorough investigator that I've worked with.
I recommend his services without hesitation".

Laurence Cohen, Esq.Criminal defense attorney, Springfield, MA

MA criminal defense

"Keith Walker of Discovery Services has performed investigative services for my clients on a number of occasions in the past. I have found his work to be thorough and of excellent quality. Mr. Walker has always been responsive and has performed excellent investigative work for me in the past."

Christopher J. O'Rourke, Esq. Attorney, Boston, MA

Background checks

"I have had the opportunity to hire Mr. Keith Walker to provide private investigative services in connection with matters regarding my clients. Mr. Walker has consistently handled matters in a professional, timely and cost-effective manner. I highly recommend Mr. Walker's investigative services.""

Bonnie Karas, Esq. Attorney, Monson MA

Criminal defense

"...diligent, thorough, and on time…extremely helpful in suggesting the most cost and time efficient way to obtain the information sought...cordial and professional at all times"

Mary Jane E. Legal Department, City of Westfield, MA

Contact DSI

Call Discovery Services Investigations any time,
to discuss your investigative needs.

Call: 413.788.4988
Mailing address: PO Box 80131, Springfield MA 01138
Email: keith@discovery-services.net

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"It is more important that innocence be protected than it is that guilt be punished,
for guilt and crimes are so frequent in this world that they cannot all be punished.
But if innocence itself is brought to the bar and condemned, perhaps to die,
then the citizen will say, 'Whether I do good or whether I do evil is immaterial,
for innocence itself is no protection, and if such an idea as that were to take
hold in the mind of the citizen, that would be the end of security whatsoever.' "
John Adams Dec 4, 1770


LPDAM criminal defense
member defense investigator