·       LAST FILING DATE:         APRIL 14, 2021        

·       COUNTY ANNUAL SALARY $122,540              

·       WRITTEN TEST DATE:    JUNE 5, 2021                                               

·       GRADE 29 (Bargaining Unit 12)





SPECIAL NOTE: Candidates who filed an application for the original examination date of June13, 2020 will automatically be rescheduled for the June 5, 2021 examination and are NOT required to submit a new application.




The application processing fee is $125. Application may be made via the internet at www.suffolkcountyny.gov/Departments/Civil-Service.  Payment must be made by VISA or MasterCard credit card and there will be an additional convenience fee of $1.95.  An acknowledgement of receipt of application will be sent to all internet applicants via e-mail.  The application processing fee is non-refundable and non-transferable. 


The application processing fee may be waived for Suffolk County residents who are veterans, auxiliary police, members in good standing of a local fire district or ambulance company and volunteer CERT members.  Internet applicants should complete the “Request for Application Fee Waiver and Certification” form online.  All claims for application fee waiver are subject to verification. 




An employee in this class supervises the work of a small number of Detective Investigators in the securing and verifying of facts for use in criminal proceedings.  The incumbent provides on-the-job training for these investigators, assigning and reviewing their work in addition to participating in the more difficult and complex investigations.  Work is performed under the general supervision of an administrative supervisor and is evaluated through reports and periodic review of performance and achievements.  Does related work as required.




To be eligible, a candidate must now be serving and have served on a continuous basis with permanent or contingent permanent competitive status as a Detective Investigator in the Suffolk County District Attorney’s Office for at least one (1) year immediately preceding the written examination date.




The written test will cover knowledge, skills, and/or abilities in such areas as:


1.     Evaluating information and evidence;

2.     Investigative techniques and criminalistics;

3.     New York State Laws – Police;

4.     Supervision;

5.     Understanding and interpreting written material;

6.     Preparing written material in a police setting.


Note:   The use of calculators is prohibited for this examination. 


Note:   A Guide for the Written Test for Police Supervisors/Investigators is available at the New York State Department of Civil Service website:  www.cs.ny.gov/testing/testguides.cfm.




1.              Should it become necessary to amend any part of this announcement, the Department of Human Resources, Personnel and Civil Service reserves the right to make such amendment on the Department’s web page without notification to applicants.  The most current copy of this announcement is available during the filing period at www.suffolkcountyny.gov/Departments/Civil-Service.

2.              An Expanded Description of the examination subtests is available at: www.suffolkcountyny.gov/Departments/Civil-Service.

3.              Candidates who apply for this examination and who have not heard from the Suffolk County Department of Human Resources, Personnel and Civil Service by June 2, 2021 are advised to contact the Department before the written test date at (631) 853-5500.

4.              You can view your room assignment and exam site on our home page at www.suffolkcountyny.gov/Departments/Civil-Service under “Candidate Exam Room Assignment Search” seven days prior to the examination date.




DATE PREPARED:  March 8, 2021






1.              Application may be made using the Suffolk County Application for Promotional Examination (Form CS-203).

2.              Applicants may complete a “Request for Application Fee Waiver and Certification” form and submit it with Form CS-203.

3.              Unless otherwise stated, candidates must meet the minimum qualifications by the date of the written test, or last filing date in the case of training and experience evaluations. Unless otherwise stated, part-time experience will be pro-rated.

4.              Candidates found ineligible to compete in the written examination may appeal to the Department of Human Resources, Personnel and Civil Service for reconsideration prior to the last filing date appearing on this announcement.  Appeals received on or after the last filing date will not be considered.

5.              Candidates who fail the examination, or who fail to appear for the examination as scheduled, will be eliminated from further consideration for purposes of this competition.  Unless otherwise specified, the final rank order of the eligible list will be determined on the basis of the scores received on the written test, plus seniority and veterans' credits where appropriate.

6.              Eligible applicants will be notified when and where to appear for examination. If an application is rejected, due notice will be sent.

7.              Unless specifically prohibited by the examination instructions, candidates are permitted to use quiet, hand-held, solar or battery-powered calculators.  Devices with typewriter keyboards, spell-checkers, personal digital assistants, address books, language translators, dictionaries and any similar devices are prohibited.

8.              Eligible lists resulting from promotional examinations are only certified to the jurisdiction in which a candidate is employed. In accordance with Section 52 of the Civil Service Law, for county service, first consideration in appointment will be given to employees in the department where a vacancy occurs after which appointments will be made from the general eligible list.

9.              When an examination is prepared and rated by the Suffolk County Department of Human Resources, Personnel and Civil Service, the provisions of the Suffolk County Civil Service Rules dealing with the rating of examination will apply.

10.           When the examination is prepared and rated by the New York State Department of Civil Service in accordance with Section 23-2 of the Civil Service Law, the provisions of the New York State Civil Service Rules and Regulations which deal with the rating of examination will apply.

11.           The eligible list established as a result of this examination will remain in force for at least one year and may be extended by the Department of Human Resources, Personnel and Civil Service for a maximum of four years.  Changing conditions may make it necessary to certify to future vacancies at higher or lower salaries than those announced.

12.           Information regarding eligibility for veterans' credits appears on the promotional application form.

13.           For each six months of continuous permanent competitive service within the jurisdiction, to a maximum of 20 years, .10 credits for seniority           will be added to the scores of passing candidates only.

14.           Inquiries may be made as to character and ability and all statements made by candidates are subject to verification.  Some employers may require the candidate to be fingerprinted and to pass a background investigation.

15.           Candidates must be medically, physically and psychologically capable of performing the duties of the job.  Candidates who are appointed to positions in the Suffolk County service may be required to pass qualifying medical and/or physical and/or psychological evaluations.

16.           Saturday Sabbath Observers and handicapped persons:  If special arrangements for testing are required, indicate this on your application.

17.           No smoking is permitted in the building or on the grounds of the examination site.

18.           If you will be on active military duty with the armed forces of the United States on the date of this test, please contact the Department of Human Resources, Personnel and Civil Service before the last filing date appearing on this announcement for alternate test date information.    

19.           Multiple Examinations Scheduled for the Same Date:  If you have applied to take a written test announced by either one or several local jurisdictions (county, towns, city) scheduled to be held on the same test date as this written test, you must notify each of the local jurisdictions no later than two weeks before the test date, so they can make arrangements for taking all test at one test site.  All examinations for positions in State government will be held at a State examination center.  If you have any questions please call the Suffolk County Department of Human Resources, Personnel and Civil Service at (631) 853-5500.

20.           For information regarding a weather-related cancellation of this examination, please refer to our website at www.suffolkcountyny.gov/Departments/Civil-Service click on the “Weather-Related Exam Cancellations” link.  Civil Service Announcements are shown at the bottom of that page.   The following stations will broadcast notice of cancellation:


                                                            WALK            PATCHOGUE                                      97.5 FM

                                                            WBAB            BABYLON                                         102.3 FM

                                                            WBLI              BABYLON                                         106.1 FM

                                                            WLNG            SAG HARBOR                                      92.1 FM

                                                            WBZO            FARMINGDALE                                    103.1 FM

                                                            WRCN            MEDFORD                                         103.9 FM

                                                            NEWS 12 LONG ISLAND    TV CHANNEL 12            website:  www.news12.com




Announcements and Applications Also Available At




WILLIAM J LINDSAY COUNTY COMPLEX, BLDG. #158                                                                                                                                                            Information Display Unit,

P.O. BOX 6100, HAUPPAUGE, NY  11788-0099  Phone:  853-5500                                                                                                                                                  County Center, Riverhead