Arrests and Seizures
San Marcos Police announced the arrest of a 48-year-old meth distributor and her associate following a months-long, joint investigation. The arrests followed a three-month joint investigation that targeted a meth distributor operating in Seguin and across Hays and Guadalupe counties. The San Marcos Police Department (SMPD) released the details on its Facebook page. The operation is part of a broader effort to dismantle local drug trafficking networks.
Investigation Details
SMPD said in a Facebook post on Wednesday that San Marcos Police Narcotics investigators worked on a three-month-long joint investigation with the Seguin Police Department CASE Unit and the Guadalupe County Sheriff’s Office Narcotics Division to target “a known meth distributor operating in the city of Seguin and across Hays and Guadalupe counties.” That distributor was identified as Karin Erika Mince, 48. Along with Mince’s arrest, investigators seized roughly 14 ounces of meth and 7.5 grams of cocaine, according to the post. The post said that police identified “an associate” during a follow-up investigation. That associate was identified as Marcos Antonio Hernandez, 36. According to the post, Hernandez was caught delivering a full kilogram of meth during a controlled operation in December.
The SMPD post stated: “additional search warrants uncovered another half-kilo of meth, counterfeit pills believed to contain fentanyl, and other drugs.” The statement highlighted the presence of counterfeit fentanyl pills. The evidence was collected during the coordinated searches. The seizures were part of the ongoing investigation.
Drugs seized in Dec. 2025 during a joint investigation between the San Marcos Police Department, the Seguin Police Department …
Community and Agency Response
The SMPD Facebook post included the following statement: “sincerely appreciates the participation and assistance provided by both the Seguin Police Department and the Guadalupe County Sheriff’s Office. Both agencies allocated significant resources and man-hours that resulted in the safe and successful resolution of this investigation. Further gratitude is also extended to the Kyle Police Department, the Hays County Sheriff’s Office, and the Caldwell County Sheriff’s Office for the information and assistance that they provided during this investigation.” The post highlighted the resources and effort of the agencies. The statement emphasized the significance of interagency collaboration. The post was shared on Facebook on Wednesday.
Further gratitude was extended to the Kyle Police Department, the Hays County Sheriff’s Office, and the Caldwell County Sheriff’s Office for the information and assistance they provided during this investigation.
KXAN reached out to attorneys connected with Mince and Hernandez for a response to the accusations. This story will be updated when we receive a statement on their behalf.
Legal and Future Implications
The next steps involve ongoing investigations and potential court proceedings against the arrested individuals. Law-enforcement officials will continue to gather evidence and build the case. The defendants will be charged under applicable state statutes. The investigation remains active as authorities work to secure convictions.
Police officials stated that the joint investigation successfully dismantled a key meth distribution network. They emphasized the importance of interagency cooperation in addressing drug trafficking. The arrests are part of a broader strategy to reduce methamphetamine availability in the region. The officers highlighted the role of coordinated operations in achieving these results.
The joint investigation was a multi-agency effort that spanned three months and involved narcotics units from several counties. The operation targeted individuals who distributed methamphetamine across multiple jurisdictions. The coordinated approach allowed for the identification, arrest, and seizure of substantial quantities of drugs. The investigation demonstrated the effectiveness of collaborative law-enforcement strategies.
Community Impact and Law Enforcement Cooperation
The arrests are expected to have a positive impact on the local community by reducing the availability of methamphetamine. Residents in Seguin, Hays, and Guadalupe counties may experience a decline in drug-related incidents. The operation is part of ongoing efforts to improve public safety. The authorities anticipate that the removal of these distributors will deter future trafficking.
Law-enforcement cooperation was central to the success of the operation. The SMPD worked closely with the Seguin Police Department and the Guadalupe County Sheriff’s Office. Additional agencies such as the Kyle Police Department, Hays County Sheriff’s Office, and Caldwell County Sheriff’s Office provided critical intelligence. The collaboration highlights the importance of shared resources in combating drug crimes.
The legal implications for the arrested individuals include potential charges for drug distribution and possession. The evidence collected will be used in court proceedings. Prosecutors will assess the severity of the offenses based on the quantities seized. The legal process will determine the outcomes for Mince and Hernandez.
Follow-up Operations and Public Safety
Follow-up operations are planned to monitor any remaining activity related to the distribution network. Officers will continue to investigate other potential associates. Surveillance and intelligence gathering will be employed to prevent re-entry into the market. The authorities aim to maintain momentum in the crackdown on methamphetamine trafficking.
Public safety remains a priority for the agencies involved. The removal of a major distributor is expected to reduce drug-related crimes in the area. Community outreach programs may be enhanced to address the root causes of drug use. The agencies remain committed to protecting residents from the dangers of methamphetamine.
Community Response and Background on Meth Distribution

Community members have expressed relief at the arrests. Local leaders have praised the joint effort and the swift action taken by law-enforcement. Residents are encouraged to report suspicious activity. The agencies have reiterated their dedication to keeping the community safe.
Methamphetamine distribution has long been a challenge in the region. Distributors often operate across county lines to evade detection. The SMPD’s investigation targeted individuals who were actively supplying the drug. The operation aimed to disrupt the supply chain and reduce availability.
Historical Context and Future Investigations
Historically, drug-trafficking investigations have required extensive coordination. Multi-agency collaboration has proven essential in dismantling networks. The current operation follows a pattern of joint efforts to combat narcotics. The success of this case reflects the persistence of law-enforcement teams.
Future investigations will likely focus on identifying remaining suspects and securing additional evidence. Authorities plan to expand the scope of the investigation to include other related crimes. The agencies will continue to share intelligence and resources. The goal is to sustain the momentum in reducing methamphetamine trafficking.
Conclusion
In summary, the San Marcos Police Department’s joint investigation led to the arrest of a 48-year-old meth distributor and a 36-year-old associate. The operation seized significant quantities of methamphetamine, cocaine, and counterfeit fentanyl pills. The coordinated effort involved multiple law-enforcement agencies across several counties. The arrests are expected to strengthen public safety and deter future drug trafficking.

