Why was Charles Stewart parnell imprisoned without a trial?

Charles Stewart Parnell was imprisoned without trial in 1881 under the Coercion Act, a law enacted by the British government to suppress Irish nationalist movements. His detention followed his leadership in the Irish Parliamentary Party and his advocacy for land and political reforms, which the British authorities viewed as a threat to their control over Ireland. Parnell's imprisonment was controversial and sparked significant public outcry, highlighting the tensions between Irish nationalism and British rule. Ultimately, his imprisonment became a rallying point for the Irish nationalist cause.