It is our hope that you will find this site interesting and informative. As an elected official, I view myself as a steward of this esteemed office, and I am committed to upholding the sacred trust the citizens of Lake County Indiana have placed in me. We are all fortunate to be a part of a community that is strengthened by strong values and enriched through natural and cultural diversity.

Our mission at the Lake County Sheriff's Department is to enhance the quality of life in Lake County by serving and protecting our community through excellent law enforcement services. We are proud of the services we provide and equally proud of the confidence the public has in us and our capabilities. Together we will make a difference, and in so doing preserve the quality of life we all enjoy, not only for ourselves, but for future generations as well.



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For several years, I have awarded college scholarships to qualified high school seniors or college students who are pursuing a degree in criminal justice studies.  This year, there will be approximately 40 scholarships of $750 each; awarded to qualifying students throughout the state of Indiana.

The Indiana Sheriff’s Association Scholarship Fund was established for the purpose of receiving, investing, and dispensing of funds to provide college scholarships to qualified students who are committed to pursuing an education and career in the law enforcement field.

This will be the 43rd year the association will provide scholarships to deserving students throughout the state.

To qualify for one of these scholarships, the applicant must be an Indiana resident, be a current member of the association or a dependent child or grandchild of a current member of the association, attend an Indiana college or university, major in a law enforcement field and enroll as a full-time student (12 hours).  Those interested can become members of the Indiana Sheriffs’ Association through the organization’s website at: https://indianasheriffs.org/individual-family-form/

Those interested can download an application for the scholarship by Clicking Here

Applications must be completed and received by the Indiana Sheriffs’ Association on or before April 1.

-Sheriff Oscar Martinez Jr.

Beginning with the January 2023 Sheriff’s sale, the SHERIFF’S SALES WILL BE HELD AT THE “LAKE COUNTY PURDUE EXTENSION” building located at 2291 N. Main St. (east parking lot of the Lake County Government Center) for approximately six (6) months while the main auditorium is renovated.  Click for more info...



Sheriff Oscar Martinez Jr. is launching new technology platforms to assist the citizens of Lake County.  It’s part of an integrated plan to enhance the sharing of intelligence with all law enforcement agencies throughout the county.  Tip411 allows the public to share non-emergency public safety information anonymously with our officers by sending a secure text message.  Officers will be able to respond, creating a two-way conversation.   The tips are received in real-time and can be responded to in seconds.

Anyone with a cell phone may send an anonymous tip to the Lake County Sheriff’s Office by texting the keyword LCSO and the tip to 847411.  Tips can also be submitted through the Lake County Sheriff’s Department mobile app, which will redirect to Tip411.  Click for more info...



The Lake County Sheriff’s Department will be conducting Retiree Qualifications (HR218/SB1132 “Law Enforcement Officers Safety Act” qualifications) on the first Wednesday of every month.  The qualifications will be conducted from 8:00 am to 12:00 pm on the indoor range at the Lake County Sheriff’s Department 2293 N Main St, Crown Point, IN. 

You will need to have a minimum of 30 rounds of ammunition for each weapon you qualify with.  This ammo MUST BE factory new TMJ (total metal jacket) or lead-free ammo.  No reloads, no FMJ (full metal jacket), or armor piercing ammo.  Also, due to Covid-19, you will need your own eye protection, ear protection, a holster for each weapon, and magazine pouches for extra ammo.  You can view the course of fire here Course of Fire.  The fee for completing the qualification is $5.00.  Once completed you will need to pay the fee with the B of I, then report to the County’s Physical Security Office to obtain an ID.


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