INTERNAL AFFAIRS INVESTIGATOR, PROBATION

Position/Program Information

EXAM NUMBER

F8639A-R

TYPE OF RECRUITMENT

We welcome applications from everyone.

We will be accepting online applications from December 15, 2025, at 8:00 AM (PT) until January 9, 2026, before 5:00 PM (PT).

Why work for us?

With more than 10 million residents, Los Angeles County is the most populous county in the nation! As the largest employer in Southern California, over 116,000 employees in more than 38 Departments, we provide vital public services as diverse as law enforcement, property assessment, public health protection, water conservation, cultural activities and many more.

We are dedicated professionals committed to preserving the dignity and integrity of the workplace as well as protecting the rights of each employee. The County has more than 2,300 different job descriptions, offering a lifetime of opportunities and careers! We offer one of the strongest public-sector benefits packages in the country. Join us and discover a rich selection of health care options, robust retirement plans and the flexibility to work, relax, and rejuvenate to reach your fullest personal and professional potential.

Essential Job Functions

• Conducts complex, confidential, comprehensive, and sensitive criminal and administrative investigations by thoroughly researching alleged misconduct and/or violations of the law.
  
• Prepares affidavits to present to a court of law and obtains valid arrest/search warrant that will withstand judicial review.
  
• Prepares or works with County Counsel or prosecuting attorneys to prepare criminal or administrative subpoenas to further investigative efforts.
  
• Coordinates tactical operations and prepares operational plans to gather facts, evidence, and information supporting an investigation.
  
• Serves as a liaison with Courts, State, federal, and local law enforcement agencies to further ongoing criminal and administrative investigations.
  
• Interviews witnesses and interrogates suspects in investigations to identify violations of law and/or policies using industry standard investigative techniques.
  
• Analyzes written, visual, and/or audio evidence to effectively investigate allegations of misconduct and violations of the law.
  
• Develops, documents, and utilizes informants in compliance with departmental policy and the law.
  
• Makes arrests for violations of the law to ensure institutional and public safety using established law enforcement techniques.
  
• Conducts searches of persons or property to collect evidence and ensure officer safety, utilizing established law enforcement techniques and equipment.
  
• Conducts covert, physical, mobile, and/or electronic surveillance of suspects in compliance with the law and department policy.
  
• Responds in person at various hours to conduct investigations in areas under the jurisdiction of the Probation Department.
  
• Prepares criminal cases for referral to the District Attorney for prosecution.
  
• Prepares cases for the department for administrative personnel actions.
  
• Testifies in administrative hearings, civil litigations, and criminal proceedings as a witness regarding investigative findings and conclusions.
  
• Prepares detailed investigative reports documenting findings, conclusions, and recommendations for disciplinary action or criminal prosecution, if warranted.
  
• Performs related duties as assigned or as necessitated by emergencies and/or other critical operational needs.
  

For more information, please click Here to view the classification specification

Requirements

REQUIREMENTS TO QUALIFY:

A Bachelor’s degree* from an accredited college or university.

AND

Option I: Four (4) years of experience conducting criminal or administrative** investigations as a peace officer***, three (3) years of which must have been at the level of Assistant Probation Director **** or as an Investigator, Detective, or Agent with a state, county, or local law enforcement, corrections, or community corrections agency.

At the level of : You may still qualify even if your job title isn’t exactly the same as the ones listed above. What matters is that your experience is at a similar level - meaning your job involves similar responsibilities, requires comparable skills and knowledge, and takes place within a similar organizational structure. Please provide a clear explanation of your experience to demonstrate that it is at the appropriate level and within a similar organization.

OR

Option II: Four (4) years of experience as a peace officer*** conducting criminal or administrative* investigations as a Supervising Deputy Probation Officer ***** within Los Angeles County.

*To receive credit for your education, include a legible copy of your official diploma, official transcript, or letter/certificate from an accredited institution within seven (7) calendar days of the end of the filing period. The document should show the date the degree was conferred and be in English; if it is in a foreign language, it must be translated and evaluated for equivalency to U.S. standards. For more information on our standards for educational documents, please visit: https://file.lacounty.gov/SDSInter/dhr/070812_PPG123.pdf and https://file.lacounty.gov/SDSInter/dhr/205105_PPG_123_ACE_Resource_Guide.pdf .

**Criminal or administrative investigations must have been in an investigative unit, or a specialized unit or task force. Investigative work for all applicants should include carrying an investigative caseload and performing duties such as: apprehend and arrest suspects; develop field operation/investigation plans and safely execute them; develop relationships with informants; examine a variety of records to locate links in chains of evidence or information; gather in-depth background data and information; identification and surveillance of suspected criminal activity and location; identify, gather, preserve, verify, and analyze pertinent records and all types of evidence, including photographs, taking measurements, and drawing diagrams/sketches; identify, locate, and interview/interrogate suspects, subjects, or witnesses and analyze their testimony; investigate complaints of civil, criminal, and/or administrative misconduct; monitor electronic surveillance equipment; plan, coordinate, and participate in law enforcement actions involving criminal suspects, and work undercover, as well as participate in covert investigations and raids; prepare the case for legal proceedings and/or testify in court proceedings; report facts and statements; work with other law enforcement agencies and the courts; write and serve search warrants and administrative subpoenas; and write arrest and investigative reports.

***Qualifying peace officer experience must be consistent with Penal Code Section 830, and specifically defined in one of the following Penal Code sections: 830.1, 830.2, 830.3, subdivisions (a), (c), (d), (f), (h), (i), (k), (p), (q), or (s), 830.33, 830.38, or 830.5.
****At the level of Assistant Probation Director is defined as having direct responsibility for specialized programs or functions such as conducting or overseeing criminal and/or administrative investigations concerning alleged misconduct by staff, contractors, and Probation clients.

*****All experience at the Supervising Deputy Probation Officer level must have been in criminal and administrative investigative work while assigned to the Probation Department’s Internal Affairs Bureau.

Withhold information:

No withholds will be allowed. Required experience and education must be fully met by the last day of filing, and clearly indicated on the application.

Endorsement of county qualifications:

If you performed work that differs from the duties described in your class specification and believe you qualify for this opportunity, please provide verification via official documentation of additional responsibility bonus, out-of-class bonus, temporary assignment bonus or reclassification study with CEO Classification within 7 calendar days from the last day of filing. Employees do not need to submit such verification if they hold or have held a position that regularly performs functions in alignment with the requirements

License:

A valid California Class C Driver License is required to perform essential job functions.

Physical class:

Class IV - Arduous: This class involves frequent heavy lifting over 25 pounds, often combined with bending, twisting, or working above ground on irregular surfaces. It includes those positions that occasionally demand extraordinary physical activity such as those in Safety positions.

Special requirement information:
Candidates must meet the qualifications for designation as a peace officer as set forth in the California Government Code.Appointees will be required to meet State-mandated CORE training requirements as defined by the Standards for Training in Corrections.Applicants must be able to perform the essential functions of this classification, with or without reasonable accommodation.Peace Officers must be legally authorized to work under federal law.

Additional Information

Once we have identified that you meet our requirements, an invitation regarding the following assessment process will be sent:

Our Assessment Process:

This examination will consist of a Structured Interview weighted 100% assessing:

• Knowledge of Criminal and Administrative Investigations
• Knowledge of Laws, Regulations, and Ethical Standards
• Critical Thinking and Decision Making
• Fact Finding and Information Analysis
• Adaptability
• Conscientiousness
• Integrity & Ethics
• Planning and Organizational Skills
• Oral Communication

You will need to meet the Requirements and achieve a passing score of 70% or higher on the Structured Interview in order to be placed on the eligible list.

Eligibility and Vacancy Information:

Candidates who pass the assessment are placed on a list in the order of their score group for a period of three (3) months. We will use this list to fill vacancies as they occur.

Los Angeles County Probation may use an alternative banding method in line with Civil Service Rule 11.01{D}.

APPLICATION AND FILING INFORMATION:

We only accept applications filed online. Applications submitted by U.S. mail, fax, or in person are not accepted. Apply online by clicking on the "Apply" green button at the top right of this posting. This website can also be used to get application status updates.

Please fill out the application completely. Provide relevant job experience including employer's name and address, job title, beginning and ending dates, number of hours worked per week, and description of work performed.

We may verify information included in the application at any point during the examination and hiring process, including after an appointment has been made. Falsification of information could result in refusal of application or rescission of appointment. Copying verbiage from the Requirements or class specification as your work experience will not be sufficient to demonstrate meeting the requirements. Doing so may result in an incomplete application and may lead to disqualification.

We will send notifications to the email address provided on the application, so it is important that you provide a valid email address. If you choose to unsubscribe or opt out from receiving our emails, it is possible to view notices by logging into governmentjobs.com and checking the profile inbox. It is every applicant's responsibility to take steps to view correspondence, and we will not consider claims of missing notices to be a valid reason for re-scheduling an exam part. Register the below domains as approved senders to prevent email notifications from being filtered as spam/junk mail.

• info@governmentjobs.com
• klent@hr.lacounty.gov
• kty@hr.lacounty.gov

New email addresses need to be verified. This only needs to be done once per email address and can be done at any time by logging in to governmentjobs.com and following the prompts. This is to enhance the security of the online application and to prevent incorrectly entered email addresses.

Federal law requires that all employed persons have a Social Security Number, so include yours when applying.

For those who do not have access to a computer or the internet, we provide access to complete an application at public libraries throughout the county.

All applicants must file their application online using their own user ID and password. Using a family member's or friend's login information may erase a candidate's original application record.

Anti-Racism, Diversity, and Inclusion (ARDI):

The County of Los Angeles recognizes and affirms that all people are created equal and are entitled to all rights afforded by the Constitution of the United States. We are committed to promoting Anti-Racism, Diversity, and Inclusion efforts to address the inequalities and disparities amongst race. We support the ARDI Strategic Plan and its goals by improving equality, diversity, and inclusion in recruitment, selection, and employment practices.

Testing accommodation:

If you require an accommodation to fairly compete in any part of the assessment process, contact the Testing Accommodations Coordinator at TestingAccommodations@hr.lacounty.gov. We require a completed Request for Reasonable Accommodation form as well as supporting documentation from a qualified professional justifying the request. The sooner you contact us, the sooner we can respond and keep you moving through the process.

Testing Accommodations Coordinator: TestingAccommodations@hr.lacounty.gov

Teletype Phone: (800) 899-4099

Alternate Teletype Phone: (800) 897-0077

California Relay Services Phone: (800) 735-2922

Department Contact Name: Kyle Lent

Department Contact Phone: (213) 441-2091

Department Contact Email: klent@hr.lacounty.gov

For detailed information, please click here

Closing Date/Time: 1/9/2026 5:00 PM Pacific

• 

• Los Angeles County

• (800) 970-5478

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