welcome to north star document experts, LLC

If you have a document you suspect has been altered, I can help

If you have questions about a signature on a document, I can help

If you are a victim of forgery or identity theft, I can help

If you need an expert to testify about a questioned document, I can help

Note to Attorneys:

Do you or your client have concerns about the authenticity of a document? As a forensic document examiner and handwriting expert, I offer my services as both a consultant and an expert witness.

What is a Forensic Document Examiner?

A forensic document examiner investigates and verifies facts related to documents, focusing on authorship, authenticity, alterations, additions, and erasures. They analyze inks, paper, writing instruments, and business machines, they then prepare a comprehensive report on their findings and, if necessary, provide expert testimony in court.

What are the qualifications of a Forensic Document Examiner?

Forensic document examination is a discipline that combines science and skill, requiring extensive experience, practice, and rigorous training. My qualifications align with the guidelines set by the Scientific Working Group for Forensic Document Examiners (SWGDOC.org) This organization focuses on establishing standards and guidelines for forensic document examiners. Their work includes creating protocols for examining handwriting, altered documents, and other questioned document-related analyses.

This field is also referred to as forensic document examination, document examination, questioned document examination, handwriting examination, handwriting expertise, or handwriting analysis.

What types of cases typically involve the testimony of a handwriting expert witness?

Cases involving forgery, fraud, or disputed documents often necessitate the testimony of a handwriting expert witness to analyze and compare handwriting samples and present their professional opinion in court.


North Star Document Experts offers specialized forensic services for questioned signatures and documents. I work with attorneys, district attorneys, public defenders, police departments, investigators, banks, insurance companies, and other private entities to provide questioned document-related services.


about 

Mr. Sachs has had a long and multifaceted career in the criminal justice system. After retiring from policing, he transitioned into the legal framework, contributing to the operation of the courts. In recent years, Mr. Sachs has expanded his skill set by incorporating specialized training in questioned handwriting and document examination, leveraging this expertise to establish a private practice. This venture benefits from his decades of experience in law enforcement and the judicial system. Throughout his career, Mr. Sachs has demonstrated an unwavering commitment to integrity, justice, and public service.

 

do you have questions ABOUT a document?

COMMON DOCUMENTS i see

  • Wills
  • Threatening Letters & Notes
  • Anonymous Writings
  • Cut & Paste Documents
  • Suicide Letters
  • Envelopes
  • Signatures
  • Handwritten Documents
  • Quit Claim Deeds & Titles
  • Contracts
  • Paper Tears
  • Impression Seals 
  • Rubber Stamps
  • Medical Records
 

WHO I WORK WITH

Attorneys &

Law Offices

Private 

Citizens 

Government

Agencies

Banking and

Corporate 

"Expert Analysis, Trusted Results"

know the truth


 Whether you need the information I provide to share with your attorney, or you just want to know the truth for yourself, I can help provide peace of mind by determining if the questioned signature/document is a forgery or genuine. 



signature verification

Signature verification in forensic handwriting analysis involves a detailed process to determine if a signature is genuine or forged. I begin by examining the questioned signature alongside known samples from the person, analyzing features such as line quality, letter shapes, pen pressure, writing speed, and unique habits such as how someone forms a “t” or loops an “l.” Using tools like magnifying glasses or microscopes, I check for signs of tracing, hesitation, or unnatural strokes that might suggest forgery. It’s not just about matching; I also consider whether the signature fits the context, such as the date or document type. The goal is to provide a clear, expert opinion backed by evidence on whether the signature is real, often detailed in a report for clients or court use.

 

anonymous writings

Anonymous writing is text, such as a threatening letter or note, where the author attempts to hide their identity. As a forensic handwriting expert, I analyze it by comparing the anonymous sample to known writing from suspects, looking at traits like letter shapes, connections, spelling quirks, and even how someone holds a pen. I use tools like microscopes to spot tiny details, such as a shaky line or unique flourish, that might link it to a person. It’s not just about handwriting; I also check word choices or grammatical habits that could match a suspect’s style. The aim is to narrow down or identify the author with solid evidence, often for a report or court case.

 

altered documents

A forensic document expert examines documents by closely studying their physical and written features to uncover authenticity, alterations, or origins. I start with the naked eye and tools like microscopes or specialized lighting, checking paper texture, ink types, and printing methods for signs of tampering such as erased lines, added text, or mismatched fonts. For handwriting, I compare signatures or notes to known samples, analyzing stroke patterns, pressure, and quirks like misspellings. I might also test for age, such as faded ink or worn edges, to see if the document fits its claimed date. The result is a detailed opinion, backed by evidence, on whether the document is real or manipulated, often for legal use.

 

THE EXAMINER'S LAB

As a forensic document examiner, I use a variety of tools in my lab to analyze documents and uncover the truth. I rely on a digital microscope to zoom in on tiny details like ink lines or paper fibers. UV and infrared lights help reveal hidden alterations, such as faded ink or erased marks that aren’t visible to the naked eye. Digital cameras and scanners capture high-resolution images for comparison or court displays. Basic tools like rulers and protractors measure angles or alignments, all working together to spot fakes or alterations.

 

expert testimony

As a forensic document expert, I offer expert testimony during depositions or court hearings by clearly outlining my findings and methodology under oath. I would start by summarizing my credentials with over 35 years of experience in law enforcement, the court system, and document analysis training. Next, I would explain my examination process and the methods employed, ensuring the language remains straightforward and factual. I would present my conclusions and be prepared to provide any necessary exhibits. In court, I would respond directly to questions from both sides, while during a deposition, I would deliver the same detailed information for a recorded statement.
 

verbal opinion

A verbal opinion is when I talk with the attorney or client after my initial analysis, before anything is written down. It’s informal, not recorded, and is part of the attorney’s private planning. The law protects this discussion under the work-product doctrine. It doesn’t have to be shared with the other side unless I’m testifying.

letter of opinion

A written letter of opinion is a formal document in which a consultant, like me, presents findings and conclusions on paper after analyzing something such as a questioned document or signature. It is detailed, signed, and notarized. It is meant to be shared with the other side. With this document, most cases will settle without the need to go to court.

full report

A full report includes everything I have done to analyze the document or signature in question and the detailed steps I took to determine my conclusion. It is written clearly, often with illustrations or examples, and signed by me. This report is official and can be used in court or at depositions, so it is usually shared during discovery, the part of a case where evidence is exchanged.


Are you looking for clarity regarding a questionable signature or document? My expert document examination and handwriting analysis services offer peace of mind by helping you assess authenticity and identify forgery. Most cases settle out of court with a notarized letter of opinion, often allowing attorneys to reach settlements or prompting the opposing side to drop the case. However, I am also available for depositions or court testimony, either in person or via Zoom, if required. I provide professional opinions and court-ready exhibits to effectively support your case. Contact me for expert assistance customized to your needs.  Your initial consultation is FREE.

services and fees

All fees must be paid before any services or reports are released.
Initial Consultation:   FREE
Examination and Verbal Opinion: $600.00 (per questioned signature or one-page document)
Upgrade from Verbal Opinion to Written Opinion: $500.00 additional (already paid $600.00)
Attorney Consultation (hourly): $300.00
Additional Laboratory Time (hourly): $300.00
On-Site Document Inspection (hourly, plus expenses): $300.00 (Most of the time, the materials can be emailed to me)
Appearance for Court/Deposition: $2,000.00 (Daily, plus expenses)

TRAVEL

Driving (hourly, plus expenses): $150.00
Flying (Business Class, cost of flight and ground transport): $1,000.00 per day plus expenses
Lodging: Actual cost
Meals (daily): $80.00

All fees and services for appearances must be paid no less than two weeks before any court appearance/deposition; otherwise, the dates will be removed from my calendar, and no testimony will be provided.


With over 35 years of experience in law enforcement, my extensive background, combined with years in the courts and specialized training in questioned handwriting and document analysis, promises thorough and accurate results. Choose my services for reliable, professional insight backed by decades of real-world experience, ensuring clarity and confidence in every case.
 

I am dedicated to helping you find the truth 

i will be happy to hear from you!

Get in touch with me