What is the fine-grained topic of the following text: Popular kidnapper Chukwudumeme Onwuamadike popularly known as Evans has challenged his detention since June 10 without arraignment while also claiming that his parade on June 11 before journalists at the Lagos police command headquarters in Ikeja, without a court order, is unconstitutional and illegal. Only return the topic.
Chukwudumeme Onwuamadike's challenge of his detention and parade without arraignment or court order