NICHOLAS H. Collishaw
Merrimack,NH
Summary
Highly motivated Detective assigned to the Special Investigations Bureau-Narcotic Investigation Unit, with nearly 9 years of law enforcement experience. This experience includes conducting complex drug trafficking investigations. Offers a unique combination of program, case management, risk assessment, and due diligence skills. Experienced in the planning, organizing, and directing sensitive law enforcement operations and the handling, working closely with confidential sources. Skilled in the gathering and analyzing pertinent criminal data. Experienced investigator able to maintain confidentiality in dealing with sensitive information; who employs excellent communication skills in writing investigative reports and collaborating with police investigators.
Overview
18
18
years of professional experience
Work History
Narcotics Detective
Town of Hudson, NH
05.2022 - Current
- Enforcement and investigation of state laws and town ordinances. Investigations included but not limited to, financial exploitation/fraud, crimes against persons, crimes against property and narcotics
- Member of multiple specialty units which include the Southern New Hampshire Special Operations Unit with three years of tactical experience, Accident Reconstruction Team, Mountain Bike Team and Crime Scene Team.
- Field Training Officer responsible for training new hire’s on Department policy and procedure as well, Town Ordinances and New Hampshire State Laws and Regulations.
- Obtained and served arrest and search warrants related to various crimes to include narcotic and financial cases.
- Conducted controlled buys to identify and apprehend local narcotic dealers.
- Responded to traffic stops to assess drugs found and coordinate strategic responses focused on securing information on higher-level individuals involved in the Hudson and nearby jurisdictions drug trade.
- Testified in court about drug activity and related crimes.
- Recruited, developed, utilized, and shared Confidential Sources (CS).
- Attended various trainings to include cell phone mapping, handling informants, surveillance, interview/interrogation and narcotics interdiction.
Senior Instructor-Sergeant First Class
NH Army National Guard
02.2008 - Current
- Coordinate and execute various Army Combative Courses ranging from 40-80 hours of classroom and practical instruction.
- Increased student motivation by developing engaging lesson plans that catered to various learning styles.
- Managed training facilities, equipment, and safety protocols, ensuring minimal training-related injuries during instructional periods.
- Mentored junior soldiers, building confidence and leadership through tailored coaching and motivational instruction.
- Over 200+ hours as a lead instructor or assistant instructor while ensuring standards were met.
- Promoted classroom safety, collaboration, and best practices.
- Deployed to Afghanistan in 2013 in support of Operation Enduring Freedom as a member of the 237th MP Company
Police Officer
Town of Hollis NH
04.2017 - 04.2022
- Enforcement and investigation of state laws and town ordinances. Investigations included but not limited to, financial exploitation/fraud, crimes against persons, crimes against property and narcotics
- Attended and graduated from the New Hampshire Police Standards and Training Council in 2022 - Class 173
- Promoting positive community policing initiatives to foster good police/community relations.
- Maintained and organized the Departments Evidence room as one of the two evidence custodians, ultimately responsible for thousands of dollars of evidence.
- Held numerous department Instructor positions to include; Defensive Tactics Instructor, Taser Instructor, OC Instructor, Physical Training Instructor, and Solo Officer Rapid Response Instructor.
Information Security Specialist
BAE Systems Inc.
10.2016 - 04.2017
- Administers security programs and procedures for classified/proprietary materials, documents, and equipment. Implements federal security regulations that apply to company operations. Assist in procedures for handling, storing, and keeping records, and for granting personnel and visitors access to restricted records and materials.
- Document control: provide customer service to employees who need classified items barcodded, destroyed, transferred, mailed, and wrapped to other facilities.
- Conducted closed area checks and inspections.
- Entered DD254’s into SIMS; create new DD24s and SCGs and update the DD254 filing cabinet.
- Update personal authorization and release forms, daily term and new hire reports/and monthly PR Justification notifications.
Receptionist/Security Officer
Allied Barton Security Services
04.2014 - 10.2016
- First impression representative for BAE Systems providing welcome to visitors, security checks, answering or referring inquires. Directs visitors by maintaining employee and department directories. Maintains security by following procedures; monitoring logbook; issuing visitor badges.
- Conducted foot and vehicle patrols ensuring all areas are secured.
- Ensured all security procedures are being followed by employees.
- Maintained access control on the property ensuring the proper personnel are accessing their authorized area.
Education
Masters Degree - Leadership
Granite State College
Concord, NH01.2023
Bachelor’s Degree - Business Management w/ Minor in Finance
Granite State College
Concord, NH01.2016
Associates Degree - Criminal Justice
New Hampshire Technical Institute
Concord, NH01.2012
High School Diploma - undefined
Alvirne High School
Hudson, NH01.2009
Skills
- Leadership, team player, communication, conflict resolution, motivation, team building, mentorship, risk assessment, integrity, safeguard and handling of sensitive information, tactical firearms training, strong Investigating abilities, crime scene investigations, undercover assignments, court testimony, independent worker, accurate and detailed, sensitive operations planning
Accomplishments
In the fall of 2025, I was assigned to the Hudson Police Department Narcotics Unit. During this time, I conducted an investigation into the death of a female subject who fell victim to a fatal fentanyl overdose. Over the next couple months through various search warrants and cell phone mappings, I was able to identify a suspect and ultimately obtained an arrest warrant for the subject. Through cell phone data anaylisis, this subject was identified to be affiliated with a known DTO out of Lawrence, MA.
AWARDS AND HONORS
Merit Award (2025), Magna Cum Laude (2016), Employee of the Quarter (October 2020-December 2020), Army Commendation Medal, Army Good Conduct Medal, Armed Forces Reserve Medal, Afghanistan Campaign Medal, Global War on Terrorism Service Medal, Army Overseas Service Ribbon, Army Reserve Overseas Training Ribbon, Army NCO Professional Development Ribbon 3x, Army Service Ribbon, Air Assault Badge, Commandants List (Advanced Leadership Course-2019).
Timeline
Narcotics Detective
Town of Hudson, NH
05.2022 - Current
Police Officer
Town of Hollis NH
04.2017 - 04.2022
Information Security Specialist
BAE Systems Inc.
10.2016 - 04.2017
Receptionist/Security Officer
Allied Barton Security Services
04.2014 - 10.2016
Senior Instructor-Sergeant First Class
NH Army National Guard
02.2008 - Current
Bachelor’s Degree - Business Management w/ Minor in Finance
Granite State College
Associates Degree - Criminal Justice
New Hampshire Technical Institute
High School Diploma - undefined
Alvirne High School
Masters Degree - Leadership
Granite State College