Lisa Marie Presley has delayed a court date for a custody trial in Los Angeles with her ex Michael Lockwood due to a medical emergency. According to The Sun, court documents read that 'the matter is not called for hearing,' as 'counsel for Petitioner represents that Petitioner cannot appear this date due to a medical emergency.' The custody trial with ex Lockwood is over the current custody of twins Finley and Harper who are 11 years old. Court documents have also revealed that Presley's lawyers have engaged in 'hyper-aggressive litigation' and have called for 'hearings spurred by baseless salacious allegations.' Inside Lisa Marie Presley's custody trial with ex Michael Lockwood View this post on Instagram Glamming it up with my loves for a special event!!! @rileykeough \ud83d\udc99 A post shared by Lisa Marie Presley (@lisampresley) on Oct 11, 2018 at 10:55pm PDT Lockwood argues that been using techniques she learned during her time with the Church of Scientology to estrange him from his daughters. In this case, he has asked the court to call former Scientologist Leah Remini into the case. RELATED: Lisa Marie Presley\u2019s Ex Fears She May Relapse Due To Son\u2019s Suicide It was not reported what Presley's medical emergency was, but there has been some talk about Lockwood wanting to gain custody over his twin girls for a while now. Since Benjamin Keough's death, Lockwood has speculated that Presley may not be mentally suitable to care for Harper and Finley. This is due to the fact that Lockwood believes Presley may relapse into using again due to her son's suicide. We should know the decision in the upcoming weeks View this post on Instagram #LisaMariePresley has filed for divorce from husband #MichaelLockwood after 10 years of marriage, her rep confirms. For more info, click the link in our bio. | \ud83d\udcf7: BroadImage\/REX\/Shutterstock A post shared by People Magazine (@people) on Jun 28, 2016 at 2:50pm PDT "Lisa Marie Presley\u2019s son shot and killed himself in her home (Although she was not there at the time.) With all due sympathy and respect, this creates a new and unaddressed twofold problem: the safety\u00a0of the children and the greater likelihood of to relapse into drug and alcohol dependency,\u201d the filing states. While Presley has aimed to keep her previous use of drugs and alcohol private, we should know who gains primary custody of the twins in the upcoming weeks.