President, Darryl Ellis
Since 1996, A-1 Detective Agency has been at the forefront of delivering exceptional trial support to criminal defense lawyers in the Chicagoland area.
Our Mission
At A-1 Detective Agency LLC, we deliver the truth through investigative services, with an unwavering dedication to justice and integrity. A-1 Detective Agency prides itself in being professional, ethical, and in strict adherence to the law.
In Your Corner
Whether it's complex investigations or discreet surveillance, our team has the expertise and resources to handle any challenge. We ensure that our clients receive the utmost confidentiality and results they can depend on. We will help you understand what options are available to you and help you feel confident in making your decision.