Angela Spurlock, director of the Oklahoma State Bureau of Investigation, resigned after 23 years with the agency.Spurlock is the second state leader named in a petition for a grand jury investigation into the Oklahoma Department of Human Services to step down. This departure comes five months after DHS Director Dr. Deborah Shropshire left. Her resignation from the director role is effective immediately. Spurlock will remain with OSBI until she retires on March 1.The petition named both Spurlock and Shropshire, as well as five other state agencies and their leaders to be for 'acting in collusion' to commit crimes against children and families.That petition, filed in Tulsa County Court in November. PAST COVERAGE >>> PETITION FILED: Advocates ask for grand jury to investigate DHSThose include DHS, the Oklahoma Commission on Children and Youth, the Director of the State Bureau of Investigation, the Tulsa County District Attorney, two Tulsa County judges, and the former director of Oklahoma Juvenile Affairs.Advocates who have been fighting for change for months, have now hit a roadblock.In order to secure a grand jury investigation, they needed to garner 5,000 signatures. By the deadline of Dec. 23, they came up short, so a judge threw the petition out. Watch: A new bill could impose felony kidnapping charges on DHS workers. House bill could impose felony charges on DHS workersThose behind the petition told 2 News they are appealing that decision at the local level, but will go to the Oklahoma Supreme Court or U.S. Supreme Court if necessary. Stay in touch with us anytime, anywhere -- Download our free app for Apple, Android and Kindle devices. Sign up for daily newsletters emailed to you Like us on Facebook Follow us on Instagram SUBSCRIBE on YouTube