The Jedi Sentinels were a group of Jedi that preferred working directly with the everyday citizens of the galaxy as opposed to contemplative meditation and study within the confines of a Jedi Temple.
Compared to Guardians and Consulars, Sentinels were Jedi who more often combined the Force with worldly skills (law, investigation, mechanical skills, etc.). Although they weren’t typically as martial as Jedi Guardians or Warriors, they were still capable combatants in their own right, distinguished by the manner in which they fought: quick to adopt new fighting styles and alternative weapons (even using blaster and projectile weapons). Throughout their history (prior to the destruction of the Jedi Order as a result of Order 66),
Jedi Sentinels were among the most recognizable and accessible Jedi in the galaxy, as they often worked to solve more small-scale and community-oriented problems over larger political or military gains; many Sentinels took to roles such as private investigators or even acted as vigilantes from time to time to address issues created by corrupt law enforcement.