About Us

Douglas A. Tenore


     Mr. Tenore began his investigation career while studying  at South West Texas State University (now Texas State University) in San Marcos, Texas. While at the university, Mr. Tenore became licensed by the State of Texas as a reserve law enforcement officer and worked with the various agencies over the years.


   In 1983, he began working part-time as a Marine Investigator for Royston, Rayzor, Vickery & Williams in Brownsville, Texas.  In June of 1985, after graduating with a Bachelor of Science degree in Criminal Justice, he was offered a full time position in the firm's Brownsville office.  His case load involved a heavy interest in Admiralty and Maritime investigations including personal injury cases, U.S. Coast Guard regulatory violations,  vessel stowaways, collisions, oil spill and death investigations.  After being transferred to the Corpus Christi office, Mr. Tenore was designated as a regional investigator, assisting the lawyers in the Houston and Galveston offices. 


     In June of 2001, Mr. Tenore retired from Royston, Rayzor and created TENORE INVESTIGATIONS. He handles all aspects of civil and criminal investigations.  Mr. Tenore has been appointed as the case criminal investigator in United States District Court, Southern District of Texas, Corpus Christi Division as well as all eight District Courts in Nueces County.  He has also been appointed in the District Courts in San Patricio and Aransas Counties. 


     On May 1, 2016, Mr. Tenore joined HERRMAN & HERRMAN PLLC, Corpus Christi,  part-time, as their in-house Senior Investigator. While based in the Corpus Christi home office,  he assisted their satelite offices in  Brownsville, McAllen and San Antonio.  In November of 2020,  Mr. Tenore resigned from HERRMAN & HERRMAN PLLC to continue his full-time practice with TENORE INVESTIGATIONS.



Bachelor of Science - Criminal Justice - 1985

Southwest Texas State University


Marine Investigator - 1983 - 2001

Royston, Rayzor, Vickery & Williams, L.L.P.

Corpus Christi, Texas (Ret) 



Texas Licensed Reserve Law Enforcement Officer - 1984 - 2001

Captain (Ret)


Hays County Sheriff's Dept.

South Padre Island Police Dept.

Nueces County Constables - Pct's 1 & 8

Gregory Police Dept.

Aransas County Sheriff's Dept.


Reserve Narcotics Agent 

Tri County Narcotics Task Force



Texas Association of Licensed Investigators (TALI)

Callifornia Association of Licensed Investigators (CALI)

Florida Association of Licensed Investigators (FALI)

National Council of Investigation & Security Services (NCISS)

Texas Criminal Defense Lawyers Association (TCDLA)


Past-President - Propeller Club of the United States - 1994-1995

Port of Corpus Christi, Texas


Board Member, Corpus Christi International Seaman's Center, Corpus Christi, Texas - 2021 to Present