Michigan Professional Investigator Branch License And Relic ensure Application is a process for obtaining a license or relicensing an existing license to work as a Private Detective, Private Investigator, or Security Guard in the state of Michigan. There are two different types of applications: the Basic Application, which is for individuals who have never been licensed in Michigan, and the Renewal Application, which is for individuals who have an existing license and need to renew it. The Basic Application requires the applicant to submit a completed application form, a signed consent form, proof of training, and a fee. The Renewal Application requires the applicant to submit a completed application form, a renewal fee, proof of continuing education, and proof of firearms qualification. Both applications require the applicant to pass a background check and a character and fitness review.