Gregory Jensen has spent more than 32 years as an officer in the Colonie Police Department, and has been a strong role model for the youth of the community. He started his law enforcement career in January 1974 as a police dispatcher, and in October 1979, he became a Colonie Police officer. 

Officer Jensen has served in various capacities within the Police Department over the years, including: working all three patrol shifts; serving in the Internal Affairs Division, The Juvenile Investigations Unit, Community Services Unit, and the D.A.R.E. Unit. Officer Jensen is certified as a New York State Crime Prevention Specialist, where he has established long-lasting relationships with the local businesses and community groups.

In his 14 years as a D.A.R.E. Officer (Drug Abuse Resistance Education) which ended in 2007, he has worked very closely with the students, faculty, parents, and administration of the South Colonie Central School District. He served as one of the School Resource Officers to the five elementary schools, Sand Creek Middle School, and Colonie Central High School, teaching thousands of children how to stay safe, and relaying the anti-drug and violence message. He has served on the individual school crisis teams, is a Parent Advocate for the Committee on Special Education, and continues to serve on the South Colonie Safe Schools Committee. 

Officer Jensen is a second-generation life member of the West Albany Fire Department No. 1, where he has held many line officer positions. He is a past fire chief and a past fire commissioner and is still an active member today. He is also a member of the former West Albany Emergency Ambulance Squad, where he served many years as an EMT. Officer Jensen is the recipient of numerous police department and community awards. In 2006 he was named Officer of the Year by the Capital District Bank Security Officers Association for his work with financial institutions on how to both prevent and safely survive a robbery.

In 2007 he was named Officer of the Year by the Joseph E. Zaloga American Legion Post, and recognized by the South Colonie Board of Education for his outstanding service to students.