PoliceConduct.org

Aaron Arlyn Petersen

Current agency: Nicollet Co. Sheriff's OfficeSaint Peter, MN

Combined career data aggregated across all known agencies.

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Portrait of Aaron Arlyn Petersen
1Agencies
--Current Salary
0 / 0Civil Casesactive / total
--Liability Costs
--Arrests
0Reports

Licenses & certification

Licenses issued to this individual by a licensing authority.

Peace Officer

Status
Active
First awarded
Oct 11, 2005
Issued by
MN POST

Education & training

Recorded courses, newest completion dates first.

MSA Summer Sheriffs' Conference
Completed
Jun 9, 2026
Credits
8
Sponsor
MN Sheriffs' Association - SP09053
Handgun and Patrol Rifle Training
Completed
Apr 16, 2026
Credits
9
Sponsor
Nicollet Co. Sheriffs Office - SP05200
Instructor
Nicollet Co. Sheriffs Office
EMR Refresher Class
Completed
Apr 2, 2026
Credits
16
Sponsor
South Central Technical College - SP09031
Instructor
South Central Technical College
Use of Force Part 3: Readiness
Completed
Dec 22, 2025
Credits
1
Sponsor
League Of Minnesota Cities Insurance Trust (LMCIT)) - SP09631
Instructor
Dr. William J. Lewinski; William J. Everett, J.D.
Use of Force Part 2: Law and Principles
Completed
Dec 22, 2025
Credits
1
Sponsor
League Of Minnesota Cities Insurance Trust (LMCIT)) - SP09631
DMT-G Online Recertification Training (Online)
Completed
Dec 12, 2025
Credits
3
Sponsor
DPS, Bureau Of Criminal Apprehension - SP00002
Instructor
DPS, Bureau Of Criminal Apprehension
Use of Force Part 1: Law and Principles
Completed
Dec 12, 2025
Credits
1
Sponsor
League Of Minnesota Cities Insurance Trust (LMCIT)) - SP09631
Use of Force Part 4: Duty to Intercede
Completed
Dec 12, 2025
Credits
1
Sponsor
League Of Minnesota Cities Insurance Trust (LMCIT)) - SP09631
Instructor
William J. Everett, J.D. Anna L. Yunker, J.D.
MSA Winter Chief Conference
Completed
Dec 10, 2025
Credits
8
Sponsor
MN Sheriffs' Association - SP09053
Basic Data Pratices for Corrections 2025
Completed
Aug 14, 2025
Credits
2
Sponsor
MN Sheriffs' Association - SP09053
Instructor
MN Sheriffs' Association
Handgun and Patrol Rifle Training
Completed
Mar 20, 2025
Credits
2
Sponsor
Nicollet Co. Sheriffs Office - SP05200
Instructor
Nicollet Co. Sheriffs Office
Taser User Certification/Re-Certification/Transition X26, X26P, X2 & Taser 7
Completed
Mar 20, 2025
Credits
3
Sponsor
Nicollet Co. Sheriffs Office - SP05200
Instructor
Nicollet Co. Sheriffs Office
Simulator (2 Credits)-Use of Force, De-Escalation Techniques, In-Custody Subject Management
Completed
Mar 7, 2025
Credits
2
Sponsor
Tactical & Technical Assessment Services, LLC - SP10562
Instructor
Tactical & Technical Assessment Services, LLC
Lexipol Daily Training- July 2024
Completed
Dec 31, 2024
Credits
1
Sponsor
MN Sheriffs' Association - SP09053
Instructor
MN Sheriffs' Association
Use of Force Part 1: Laws and Priciples
Completed
Dec 18, 2024
Credits
1
Sponsor
League Of Minnesota Cities Insurance Trust (LMCIT)) - SP09631
Instructor
League Of Minnesota Cities Insurance Trust (Lmc)
MSA Winter Conference Sheriff 2024
Completed
Dec 10, 2024
Credits
11
Sponsor
MN Sheriffs' Association - SP09053
Instructor
MN Sheriffs' Association
Taser User Certification/Re-Certification/Transition X26, X26P, X2 & Taser 7
Completed
Nov 21, 2024
Credits
3
Sponsor
Nicollet Co. Sheriffs Office - SP05200
Instructor
Nicollet Co. Sheriffs Office
Duty to Intercede
Completed
Nov 18, 2024
Credits
1
Sponsor
League Of Minnesota Cities Insurance Trust (LMCIT)) - SP09631
Instructor
League Of Minnesota Cities Insurance Trust (LMCIT))
Lexipol Daily Training March 2024
Completed
Jun 30, 2024
Credits
1
Sponsor
MN Sheriffs' Association - SP09053
Instructor
MN Sheriffs' Association
Lexipol Daily Training- Jan 2024
Completed
Jun 30, 2024
Credits
1
Sponsor
MN Sheriffs' Association - SP09053
Instructor
MN Sheriffs' Association
Lexipol Dail Training- Feb 2024
Completed
Jun 30, 2024
Credits
1
Sponsor
MN Sheriffs' Association - SP09053
Instructor
MN Sheriffs' Association
2024 Legislative Update and Civil Process Workshop
Completed
Jun 18, 2024
Credits
5
Sponsor
MN Sheriffs' Association - SP09053
Instructor
MN Sheriffs' Association
2024 MSA Chief Deputy and Supervisor Summer Conference
Completed
Jun 13, 2024
Credits
11
Sponsor
MN Sheriffs' Association - SP09053
Instructor
MN Sheriffs' Association
Bias Crimes Part 1: The Legal Aspects
Completed
May 1, 2024
Credits
1
Sponsor
MN Sheriffs' Association - SP09053
Instructor
MN Sheriffs' Association
Crisis Management and Mediation, Crisis Intervention, Mental Illness/ Autism, Recognizing and valuing Community Diversity and Cultural Differences with Implicit Bias Training
Completed
Apr 30, 2024
Credits
16
Sponsor
Le Sueur Co. Sheriffs Office - SP04000
Instructor
Le Sueur Co. Sheriffs Office
Handgun and Patrol Rifle Training
Completed
Mar 20, 2024
Credits
2
Sponsor
Nicollet Co. Sheriffs Office - SP05200
Instructor
Nicollet Co. Sheriffs Office
Rules of Engagement; A Law Enforcement's Guide to Intervene and Render Aid
Completed
Mar 6, 2024
Credits
2
Sponsor
Eckberg Lammers PC - SP10596
Instructor
Eckberg Lammers PC
Communicating Through Conflict
Completed
Mar 6, 2024
Credits
2
Sponsor
Eckberg Lammers PC - SP10596
Instructor
Eckberg Lammers PC
EMR Refresher Class
Completed
Feb 15, 2024
Credits
16
Sponsor
South Central Technical College - SP09031
Instructor
South Central Technical College
Lexipol Daily Training Aug 2023
Completed
Dec 31, 2023
Credits
1
Sponsor
MN Sheriffs' Association - SP09053
Instructor
MN Sheriffs' Association
Lexipol Daily Training July 2023
Completed
Dec 31, 2023
Credits
1
Sponsor
MN Sheriffs' Association - SP09053
Instructor
MN Sheriffs' Association
Handgun and Patrol Rifle Training
Completed
Dec 7, 2023
Credits
2
Sponsor
Nicollet Co. Sheriffs Office - SP05200
Instructor
Nicollet Co. Sheriffs Office
Minnesota Sheriffs' Association Winter Conference
Completed
Dec 6, 2023
Credits
10
Sponsor
MN Sheriffs' Association - SP09053
Instructor
MN Sheriffs' Association
Taser User Certification/Re-Certification/Transition X26, X26P, X2 & Taser 7
Completed
Nov 20, 2023
Credits
3
Sponsor
Nicollet Co. Sheriffs Office - SP05200
Instructor
Nicollet Co. Sheriffs Office
Handgun and Patrol Rifle Training
Completed
Sep 11, 2023
Credits
3
Sponsor
Nicollet Co. Sheriffs Office - SP05200
Instructor
Nicollet Co. Sheriffs Office
DMT-G Online Recertification Training (Online)
Completed
Aug 23, 2023
Credits
3
Sponsor
DPS, Bureau Of Criminal Apprehension - SP00002
Instructor
DPS, Bureau Of Criminal Apprehension
Use Of Force Training
Completed
Jul 6, 2023
Credits
4
Sponsor
Saint Peter Police Dept. - SP05202
Instructor
Saint Peter Police Dept.
Lexipol Daily Training Jan 2023
Completed
Jun 30, 2023
Credits
1
Sponsor
MN Sheriffs' Association - SP09053
Instructor
MN Sheriffs' Association
Lexipol Daily Training March 2023
Completed
Jun 30, 2023
Credits
1
Sponsor
MN Sheriffs' Association - SP09053
Instructor
MN Sheriffs' Association
Lexipol Daily Training Feb 2023
Completed
Jun 30, 2023
Credits
1
Sponsor
MN Sheriffs' Association - SP09053
Instructor
MN Sheriffs' Association
MSA 2023 Chief Deputy & Supervisors Summer Conference
Completed
Jun 8, 2023
Credits
10
Sponsor
MN Sheriffs' Association - SP09053
Instructor
MN Sheriffs' Association
ICLD 1.13 Military Leadership
Completed
Apr 3, 2023
Credits
1
Sponsor
MN Sheriffs' Association - SP09053
Instructor
MN Sheriffs' Association
ICLD 1.12 Effective Communication
Completed
Mar 31, 2023
Credits
1
Sponsor
MN Sheriffs' Association - SP09053
Instructor
MN Sheriffs' Association
Leadership Principles and Concepts
Completed
Mar 14, 2023
Credits
1
Sponsor
MN Sheriffs' Association - SP09053
Instructor
MN Sheriffs' Association
Law Enforcement Moral Compass
Completed
Mar 14, 2023
Credits
4
Sponsor
MN Sheriffs' Association - SP09053
Instructor
MN Sheriffs' Association
ICLD 1.11 Active Listening
Completed
Mar 14, 2023
Credits
1
Sponsor
MN Sheriffs' Association - SP09053
Instructor
MN Sheriffs' Association
Simulator (2 Credits) Use of Force, De-Escalation, In-Custody Subject Management
Completed
Feb 28, 2023
Credits
2
Sponsor
Tactical & Technical Assessment Services, LLC - SP10562
Instructor
Tactical & Technical Assessment Services, LLC
New Chief Deputy Orientation
Completed
Feb 10, 2023
Credits
30
Sponsor
MN Sheriffs' Association - SP09053
Instructor
MN Sheriffs' Association
Lexipol Daily Training July 2022
Completed
Dec 31, 2022
Credits
1
Sponsor
MN Sheriffs' Association - SP09053
Instructor
MN Sheriff's Association
Lexipol Daily Training Sept 2022
Completed
Dec 31, 2022
Credits
1
Sponsor
MN Sheriffs' Association - SP09053
Instructor
MN Sheriff's Association
Lexipol Daily Training August 2022
Completed
Dec 31, 2022
Credits
1
Sponsor
MN Sheriffs' Association - SP09053
Instructor
MN Sheriff's Association
Handgun Instruction Course
Completed
Dec 14, 2022
Credits
1
Sponsor
Nicollet Co. Sheriffs Office - SP05200
Instructor
Nicollet Co. Sheriffs Office
Rifle Instruction Course
Completed
Dec 14, 2022
Credits
1
Sponsor
Nicollet Co. Sheriffs Office - SP05200
Instructor
Nicollet Co. Sheriffs Office
2022 MSA Chief Deputy & Supervisor Winter Conference
Completed
Dec 7, 2022
Credits
10
Sponsor
MN Sheriffs' Association - SP09053
Instructor
MN Sheriffs' Association
Taser User Certification/Re-Certification/Transition X26, X26P, X2 & Taser 7
Completed
Oct 18, 2022
Credits
3
Sponsor
Nicollet Co. Sheriffs Office - SP05200
Instructor
Nicollet Co. Sheriffs Office
Elder Abuse Training for Law Enforcement
Completed
Sep 28, 2022
Credits
5
Sponsor
Minnesota Elder Justice Center - SP10429
Instructor
Mn Elder Justice Center
Handgun Instruction Course
Completed
Sep 6, 2022
Credits
3
Sponsor
Nicollet Co. Sheriffs Office - SP05200
Instructor
Nicollet Co. Sheriffs Office
Rifle Instruction Course
Completed
Jul 25, 2022
Credits
1
Sponsor
Nicollet Co. Sheriffs Office - SP05200
Instructor
Nicollet Co. Sheriffs Office
Handgun Instruction Course
Completed
Jul 25, 2022
Credits
1
Sponsor
Nicollet Co. Sheriffs Office - SP05200
Instructor
Nicollet Co. Sheriffs Office
DMT-G Online Recertification Training
Completed
Jul 1, 2022
Credits
3
Sponsor
DPS, Bureau Of Criminal Apprehension - SP00002
Instructor
DPS, Bureau Of Criminal Apprehension
Lexipol Daily Training Feb- 2022
Completed
Jun 30, 2022
Credits
1
Sponsor
MN Sheriffs' Association - SP09053
Instructor
MN Sheriff's Association
Lexipol Daily Training March 2022
Completed
Jun 30, 2022
Credits
1
Sponsor
MN Sheriffs' Association - SP09053
Instructor
MN Sheriff's Association
Lexipol Daily Training April 2022
Completed
Jun 30, 2022
Credits
1
Sponsor
MN Sheriffs' Association - SP09053
Instructor
MN Sheriff's Association
Lexipol Daily Training Jan 2022
Completed
Jun 30, 2022
Credits
1
Sponsor
MN Sheriffs' Association - SP09053
Instructor
MN Sheriff's Association
2022 BCA Death and Missing Persons Investigative Conference
Completed
May 13, 2022
Credits
17
Sponsor
DPS, Bureau Of Criminal Apprehension - SP00002
Instructor
DPS, Bureau Of Criminal Apprehension
Emergency Medical Responder (EMR) Refresher - Rural
Completed
Feb 10, 2022
Credits
16
Sponsor
Minnesota State Colleges & Universities - SP09486
Instructor
Minnesota State Colleges & Universities
2022 MSCIC Winter Conference
Completed
Jan 11, 2022
Credits
13
Sponsor
Mn South Central Investigators Coalition - MSCIC - SP10260
Instructor
Mn South Central Investigators Coalition - Mscic
Lexipol Daily Training Nov- 21
Completed
Dec 31, 2021
Credits
1
Sponsor
MN Sheriffs' Association - SP09053
Instructor
Mn Sheriff'S Association
Lexipol Daily Training Sept- 21
Completed
Dec 31, 2021
Credits
1
Sponsor
MN Sheriffs' Association - SP09053
Instructor
Mn Sheriff'S Association
Lexipol Daily Training Dec- 21
Completed
Dec 31, 2021
Credits
1
Sponsor
MN Sheriffs' Association - SP09053
Instructor
Mn Sheriff'S Association
Lexipol Daily Training Oct- 21
Completed
Dec 31, 2021
Credits
1
Sponsor
MN Sheriffs' Association - SP09053
Instructor
Mn Sheriff'S Association
Lexipol Daily Training August- 21
Completed
Dec 31, 2021
Credits
1
Sponsor
MN Sheriffs' Association - SP09053
Instructor
Mn Sheriff'S Association
Minnesota Crime Alert Certification Online Training
Completed
Jul 22, 2021
Credits
1
Sponsor
DPS, Bureau Of Criminal Apprehension - SP00002
Instructor
DPS, Bureau Of Criminal Apprehension
DMT-G Online Recertification Training
Completed
Jul 22, 2021
Credits
3
Sponsor
DPS, Bureau Of Criminal Apprehension - SP00002
Instructor
DPS, Bureau Of Criminal Apprehension
Handgun Instruction Course
Completed
Jul 21, 2021
Credits
1
Sponsor
Nicollet Co. Sheriffs Office - SP05200
Instructor
Nicollet Co. Sheriffs Office
Rifle Instruction Course
Completed
Jul 21, 2021
Credits
4
Sponsor
Nicollet Co. Sheriffs Office - SP05200
Instructor
Nicollet Co. Sheriffs Office
Lexipol Daily Training Jan 21
Completed
Jun 30, 2021
Credits
1
Sponsor
MN Sheriffs' Association - SP09053
Instructor
Mn Sheriff'S Association
M23, X26, X26P & X2 Taser User Certification/Recertification
Completed
Mar 11, 2021
Credits
3
Sponsor
Nicollet Co. Sheriffs Office - SP05200
Instructor
Nicollet Co. Sheriffs Office
Simulator (3 Credits) Use of Force, De-Escalation, In-Custody Subject Management
Completed
Jan 21, 2021
Credits
3
Sponsor
Tactical & Technical Assessment Services, LLC - SP10562
Instructor
Tactical & Technical Assessment Services, LLC
Use Of Force / Defensive Tactics
Completed
Dec 18, 2020
Credits
1
Sponsor
Nicollet Co. Sheriffs Office - SP05200
Instructor
Nicollet Co. Sheriffs Office
Handgun Instruction Course
Completed
Nov 23, 2020
Credits
2
Sponsor
Nicollet Co. Sheriffs Office - SP05200
Instructor
Nicollet Co. Sheriffs Office
Less Lethal 12-Gauge Bean Bag and 40mm Launcher Platform Review and Practical
Completed
Nov 12, 2020
Credits
1
Sponsor
Mankato Dept Of Public Safety - SP09660
Instructor
Mankato Department Of Public Safety (Dps)
Oleoresin Capsicum Deployment During Tactical Operations
Completed
Nov 12, 2020
Credits
1
Sponsor
Mankato Dept Of Public Safety - SP09660
Instructor
Mankato Department Of Public Safety (Dps)
Distraction Device Deployment for Tactical Operations Review and Practical
Completed
Nov 12, 2020
Credits
2
Sponsor
Mankato Dept Of Public Safety - SP09660
Instructor
Mankato Department Of Public Safety (Dps)
Chemical Deployment for Tactical Operations Review and Practical
Completed
Nov 12, 2020
Credits
2
Sponsor
Mankato Dept Of Public Safety - SP09660
Instructor
Mankato Department Of Public Safety (Dps)
Crisis Intervention, Mental Illness, Conflict Management, Community and Cultural Diversity
Completed
Oct 20, 2020
Credits
16
Sponsor
Le Sueur Co. Sheriffs Office - SP04000
Instructor
Le Sueur Co. Sheriffs Office
Emergency Medical Responder (EMR) Refresher - Rural
Completed
May 5, 2020
Credits
16
Sponsor
Minnesota State Colleges & Universities - SP09486
Instructor
Minnesota State Colleges & Universities
Rifle Instruction Course
Completed
Feb 20, 2020
Credits
2
Sponsor
Nicollet Co. Sheriffs Office - SP05200
Instructor
Nicollet Co. Sheriffs Office
2020 MSCIC Winter Conference
Completed
Jan 7, 2020
Credits
13
Sponsor
Mn South Central Investigators Coalition - MSCIC - SP10260
Instructor
Mn South Central Investigators Coalition - Mscic
TASER User Certification and Re-certification on M26, X26, X26P, and X2
Completed
Oct 8, 2019
Credits
3
Sponsor
Nicollet Co. Sheriffs Office - SP05200
Instructor
Nicollet Co. Sheriffs Office
Ballistic Shield Basic Certification Course
Completed
Jun 25, 2019
Credits
8
Sponsor
Alpha Training & Tactics Llc - SP10351
Instructor
Alpha Training & Tactics Llc
2019 MSCIC Winter Conference
Completed
Jan 8, 2019
Credits
13
Sponsor
Mn South Central Investigators Coalition - MSCIC - SP10260
Instructor
Mn South Central Investigators Coalition - Mscic
Police Crisis Training: The R-Model
Completed
Sep 18, 2018
Credits
8
Sponsor
The Violence Project LLC - SP10479
Instructor
The Violence Project LLC
Side Image Sonar Training
Completed
Jul 25, 2018
Credits
12
Sponsor
Mn South Central Investigators Coalition - MSCIC - SP10260
Instructor
Mn South Central Investigators Coalition - Mscic
Emergency Medical Responder (EMR) Refresher - Rural
Completed
Mar 21, 2018
Credits
16
Sponsor
Minnesota State Colleges & Universities - SP09486
Instructor
MNSCU- Fire/EMS/Safety Center
FC 111 - Financial Crimes Against Seniors Seminar (FCSS)
Completed
Mar 7, 2018
Credits
7
Sponsor
National White Collar Crime Center (Nw3C) - SP09829
Instructor
National White Collar Crime Center (Nw3C)
One Day Law Enforcement Pursuit (Evoc)
Completed
Feb 7, 2018
Credits
8
Sponsor
Precision Driving Center of Minnesota - SP09067
Instructor
Mn Highway Safety & Research Center
2018 MSCIC Winter Conference
Completed
Jan 9, 2018
Credits
14
Sponsor
Mn South Central Investigators Coalition - MSCIC - SP10260
Instructor
Mn South Central Investigators Coalition - Mscic
Rifle Instruction Course
Completed
Dec 6, 2017
Credits
1
Sponsor
Nicollet Co. Sheriffs Office - SP05200
Instructor
Nicollet Co. Sheriffs Office
Handgun Instruction Course
Completed
Dec 6, 2017
Credits
1
Sponsor
Nicollet Co. Sheriffs Office - SP05200
Instructor
Nicollet Co. Sheriffs Office
TASER User Certification and Re-certification on M26, X26, X26P, and X2
Completed
Nov 1, 2017
Credits
3
Sponsor
Nicollet Co. Sheriffs Office - SP05200
Instructor
Nicollet Co. Sheriffs Office
Use Of Force / Defensive Tactics
Completed
Oct 4, 2017
Credits
1
Sponsor
Nicollet Co. Sheriffs Office - SP05200
Instructor
Nicollet Co. Sheriffs Office
Rifle Instruction Course
Completed
Oct 4, 2017
Credits
1
Sponsor
Nicollet Co. Sheriffs Office - SP05200
Instructor
Nicollet Co. Sheriffs Office
Shotgun Instruction Course
Completed
Oct 4, 2017
Credits
1
Sponsor
Nicollet Co. Sheriffs Office - SP05200
Instructor
Nicollet Co. Sheriffs Office
Handgun Instruction Course
Completed
Oct 4, 2017
Credits
2
Sponsor
Nicollet Co. Sheriffs Office - SP05200
Instructor
Nicollet Co. Sheriffs Office
MALEFI Annual Conference
Completed
Sep 8, 2017
Credits
22
Sponsor
MN Association Of Firearms Instructors (MALEFI) - SP09590
Instructor
Mn Association Of Firearms Instructors (Malefi)
DMT-G Online Recertification Training
Completed
Jun 30, 2017
Credits
3
Sponsor
DPS, Bureau Of Criminal Apprehension - SP00002
Instructor
DPS, Bureau Of Criminal Apprehension
Human Trafficking Investigations
Completed
Jun 28, 2017
Credits
8
Sponsor
Mn South Central Investigators Coalition - MSCIC - SP10260
Instructor
Mn South Central Investigators Coalition - Mscic
BCA Death Investigations Conference
Completed
Apr 21, 2017
Credits
8
Sponsor
DPS, Bureau Of Criminal Apprehension - SP00002
Instructor
DPS, Bureau Of Criminal Apprehension
Use Of Force Training
Completed
Apr 19, 2017
Credits
8
Sponsor
Saint Peter Police Dept. - SP05202
Instructor
Saint Peter Police Dept.
Taser User Certification And Recertification On M26, X26, X26P And X2
Completed
Dec 21, 2016
Credits
3
Sponsor
Nicollet Co. Sheriffs Office - SP05200
Instructor
Nicollet Co. Sheriffs Office
Minnesota'S Adult Protection System: Coordinating A Civil And Criminal Response
Completed
Sep 23, 2016
Credits
5
Instructor
Mn Department Of Human Services
Mscic Presents Lt. Col. Grossman - "The Bulletproof Mind: Mental Preparation For Combat"
Completed
Sep 7, 2016
Credits
7
Instructor
Mn South Central Investigators Coalition - Mscic
Strategies For The Recorded Interview
Completed
Aug 15, 2016
Credits
7
Instructor
Mn South Central Investigators Coalition - Mscic
Strategies For The Recorded Interview
Completed
Aug 14, 2016
Credits
7
Instructor
Mn South Central Investigators Coalition - Mscic
Mscic Presents Lt. Col. Grossman - "The Bulletproof Mind: Mental Preparation For Combat"
Completed
Jun 6, 2016
Credits
7
Sponsor
Mn South Central Investigators Coalition - MSCIC - SP10260
Instructor
Mn South Central Investigators Coalition - Mscic

Civil Cases

Cases connected through agency assignments.

Agencies

Known agency assignments linked to this profile.

AgencyRoleLicenseStart DateEnd DateStatus
Nicollet Co. Sheriff's OfficePeace OfficerPeace OfficerOct 11, 2005PresentActive