1 Source Private Investigations - 219-381-8685


Welcome to 1 Source Private Investigations
to 1SourcePI.com  

"the surveillance experts"  

The first introduction between a business and a potential customer always leads to one of two things: either the first of many hellos’ or to the thud of good-bye. We are located in Lake County in the Northwest corner of Indiana. We offer services throughout the "region", including the greater Chicago metro area, and routinely serve process in Illinois.    
This web site is full of information about us, it is not just another bill board that makes you wonder who this company is, what do they stand for, and what do they charge. Missing from this web site are the usual proclamations, and patronizing platitudes. 

  • Reasonable rates 
  • Straight talk  
  • Results

Interesting concepts aren't they? Does anyone expect anything less?
If you know of a better way to do business, please let me know.
This is a call to action. If you are on this site, you must need the services of a licensed, insured, competent detective to help you. Sure enough you can keep looking, because there is plenty of competition, but you will not find anyone with the relentless grit, determination, and success  that we have. You will find other web sites with very vague and ambiguous content, but the investigation business is anything but vague or ambiguous. Those of us in the investigations business know what we can do, and have done. The difference is that we let you know up front that if you hire this company to do a job, you will not question whether we can do it. I receive calls on a daily basis with questions about whether 1SPI can do the job they need done, and I welcome those calls and questions. Take a few minutes and review my Case Experience page, there is a good chance that whatever your particular need is, we have already worked a case just like yours.
One of the luxuries of running a business is that if you have the guts to be different, and can back it up with results, people will give you a chance and keep coming back. My clients keep coming back, and that speaks volumes about what we do here.
Do not let what is important go unprotected. We provide everything from routine witness interviews to all the other more complex private detective services.
Call now!
Best regards,                       
Thomas C. Smith
Professional Paralegal Detective
Phone: 219-381-8685
Licensed Private Investigator
College Degree in Paralegal Studies 
"thousand's of hours of                         "2,000-plus hours of
investigative experience"                     court room experience" 


April 20, 2017

We busted this guy:

Jasper man accused of taking another’s identity
April 20, 2017
[email protected]JASPER — The Jasper Police Department arrested a man Wednesday and accused him of stealing a Texas resident’s identifying information. Mendoza Police said they received information from the individual who resides in Texas indicating someone working in Jasper was using his identifying information. The Texas man’s name, birthday and Social Security number were all being used by someone to gain employment, police said.After an investigation, police went to the workplace of 36-year-old Juan Manuel Soni Mendoza, of 3828 N. Portersville Road, and took him into custody at 1:15 p.m.Numerous forms of identification determined to be false were located in Mendoza’s possession, police said. Officers also found Mendoza possessed two bank debit cards issued to the fraudulent name he had allegedly been using.Mendoza now faces preliminary Level 6 felony counts of identity deception, synthetic identitiy deception and fraud. Authorities booked Mendoza into the Dubois County Security Center at 3:52 p.m.


JAN. 2, 2014


Woman accuses Gary officers of excessive force, wrongful arrest

A Gary woman alleges in a federal lawsuit she was wrongfully arrested by officers who used excessive force during the incident, according to court records.   Hakimah I. Qualls, 32, filed a lawsuit Wednesday in U.S. District Court in Hammond against the city of Gary, the Gary Police Department and the Gary Housing Authority stemming from her Feb. 9, 2013, arrest.The lawsuit also names Gary Police Chief Larry McKinley along with officers Craig Morris, T.F. Tatum, J. Franklin, Emilio Guajardo and Freddie Cook.The Gary Police Department is accused of battery, malicious prosecution and violating Qualls' rights under the First, Sixth and 14th amendments of the U.S. Constitution.The lawsuit states Qualls was a bystander Feb. 9, 2013, when officers arrived at the Dorie Miller public housing complex. According to the complaint, an officer approached Qualls and assaulted her after she questioned his actions.Two officers at the scene are accused of dragging Qualls by her hair and slamming her onto a police car. An officer then sat on Qualls who was in the back seat of a police car, and the officer also punched and choked her, according to the lawsuit. The lawsuit goes on to allege the officers denied Qualls immediate medical treatment and denied her access to an attorney while in police custody.Chelsea Whittington, spokeswoman for the city of Gary, said by email Friday the city declined to comment, citing pending litigation. Qualls was charged Feb. 11, 2013, with battery by body waste, battery, resisting law enforcement and disorderly conduct. According to the affidavit, Gary Police Department Reserve Officer Craig Morris responded Feb. 9, 2013, to the 2000 block of Maine Street in Gary to a disturbance call. Qualls allegedly was an unwanted party at a residence and told the officer to "(expletive) off" because she was a criminal justice major and knew the law, according to the affidavit. She allegedly kicked the officer in the leg and spit at him during a struggle, according to the affidavit. The criminal charges against Qualls were dropped Jan. 7, 2014.The Lake County prosecutor's office dismissed the charges "in the interest of justice," according to a motion filed in the case.  According to the lawsuit, Qualls suffered a broken jaw, a broken nose, a dislocated shoulder, a bruised pelvis, facial swelling and several bruises throughout her body as a result of the arrest. Qualls also now suffers from post-traumatic stress disorder symptoms such as depression, flashbacks and anxiety.  

View article at -



OCTOBER 24, 2014

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Inside Edition full video Oct 2014
1 Source Private Investigations, Thomas C Smith & Brad Girman for InsideEdition - The Darren Vann Serial Killer Case, Gary, Indiana October 24, 2014.


This may not look like much to you, but this is just a snip-it
of the evidence we obtained during this investigation.
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1 Source Private Investigations - Aerial surveillance - Griffith, Indiana
1 Source Private Investigations - Aerial surveillance - 2010

News Release!

June 2014

Investigator Thomas C. Smith, the owner of 1 Source Private

Investigations has appeared on an episode on the

Investigation Discovery Channel as the investigative

expert and analyst. The Series on the ID channel is:


The episode is about the 1989 murders of

Donald and Marsha Levine, Munster, Indiana

The episode title is: 



We are listed with the Central Contractor Registry
DUNS and CAGE numbers available

Call for more information


We offer limited testimonials because we feel they are somewhat gratuitous.

We provide private investigation and process service to all of Lake County: Whiting, Hammond, East Chicago, Munster, Highland, Gary, Schererville, Merrillville, Crown Point, St. John, Dyer, Lake Station, Hobart, Hebron,
Lowell, New Chicago, and Lakes of the Four Seasons:
We provide private investigation and process service to all of Porter County: Portage, Burns Harbor, South Haven, Valparaiso, Porter, Chesterton, and Lakes of the Four Seasons. Indiana Dunes and Ogden Dunes.
We provide private investigation and process service to all of La Porte County: Kingsbury, Kingsford Heights, LaCrosse, La Porte, Michigan City, Rolling Prairie, Stillwell, Union Mills, Wanatah, Wellsboro, and Westville.
We provide private investigation and process service to the following
counties on a case by case basis: White, Starke, Jasper, Newton.
We provide process service to all counties in Northeast Illinois, including: Cook, Lake, Will, Kane, Grundy, LaSalle, & Kankakee.

  • Welfare checks?
  • Catch a cheater?
  • Follow your teen?
  • Witness interviews?
  • Background checks?
  • Locate missing people?
  • Criminal investigations?
  • Polygraph Examinations?
  • Find hidden bank accounts?
  • Due diligence investigations?
  • Find out who is following you?
  • Help you prepare for, and assist at trial?
  • Surveillance on fraudulent injury claims?
  • Covert placement of GPS tracking equipment?
  • Determine what is happening on your computer?
  • Deliver important documents or serve pleadings?
  • We do all of this and more, call for consultation
  • Give double-talk and charge high fees, we don't do that!

Home Area
Nikki Clark Testimonial edited-1
We a are proud member of the National Association of Investigative Specialists. A worldwide organization with over 5,000 members.
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Call us today, consultations are always free! 
Indiana - 219.381.8685
In home/hospital/mobile consultations available.
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