District Attorney

Investigations Division

Investigations Division is made up of Texas Peace Officers who are responsible for law enforcement activities in support of criminal cases being prosecuted by the District Attorney's Office.

These activities may include follow-up of criminal cases filed by other Denton County law enforcement agencies, tracking witnesses, and ensuring that all witnesses and evidence required to prosecute cases are present when required in court.

Investigators also perform traditional law-enforcement activities including original investigation of offenses at the direction of the District Attorney, arrests of suspects, interview and interrogation of witnesses, and participation in various County, State and Federal Task Forces targeting offenders.

There are 21 Criminal Investigators employed by the District Attorney's Office (see our assigned personnel). They are assigned a wide variety of duties, including casework in a number of specialized areas of criminal law. 

[Assigned Personnel] [Employment Requirements]
[Denton County Sheriff and Other Area Law Enforcement Links]

Employment Requirements:

The minimum requirement to be an Investigator with this office is to be CURRENTLY certified as a Regular Peace Officer by the Texas Commission on Law Enforcement Officers Standards and Education (TCLEOSE). A wide background in police work with strong emphasis on investigations, certification at the "Advanced" or "Master" peace officer level, and college is STRONGLY preferred. An investigator position in this office is not an "entry level" position in Law Enforcement. Please see our Employment Information page for current openings and further information.

Assigned Personnel:

(All Personnel Can Be Reached At (940) 349-2600,or Click Name For E-Mail, or Click "Vacant" Positions for Official Denton County Job Posting)
Chief Investigator
 (940) 349-2641
Assistant Chief Investigator 
 (940) 349-2663
Mario Merendon
Forensic Computer Investigator
(940) 349-2670
 Jack Grassman 
Criminal Investigator 
(940) 349-2714
 Joe Erwin 
Criminal Investigator 
(940) 349-2618
 Sam Mooney 
Criminal Investigator 
(940) 349-2662
 Dale Chegwidden 
Criminal Investigator 
(940) 349-2689
 James Wells 
Criminal Investigator 
(940) 349-2655
 Gerald Hoenig 
Criminal Investigator 
(940) 349-2653
 Paul Nathan
Criminal Investigator 
(940) 349-2684
 Ed Huckabee
Criminal Investigator 
(940) 349-2665
 Tom Bolding 
Criminal Investigator 
(940) 349-2702

Jeff Wiginton
Criminal Investigator
(940) 349-2664

 Casey Finke
Investigative Supervisor
(Family Law Division) 
(940) 349-2666
 Mark Michniacki
Criminal Investigator 
(940) 349-2679
Brent Robbins
Investigative Supervisor
(Misdemeanor Trial Division) 
(940) 349-2710
 Mike Sparby
Investigative Supervisor
(Felony Trial Division)
(940) 349-2705
 Donnie Leach
Criminal Investigator
(940) 349-2660
 Roy Rhodes
Criminal Investigator
(940) 349-2683
 Doug Bell
Financial Crimes Investigator
(940) 349-2725
William Cruce
Criminal Investigator 
(940) 349-2643
Greg Stern
Criminal Investigator
(940) 349-2742 


[Assigned Personnel] [Employment Requirements]
[Denton County Sheriff and Other Area Law Enforcement Links]