Can police arrest me without telling me why?
No. An arrested person must be told promptly, in a language they understand, the reason for the arrest.
Article 49 says an arrested person has the right to be informed promptly, in a language they understand, of the reason for the arrest, of their right to remain silent, and of the consequences of not remaining silent.
“to be informed promptly, in a language that the person understands, of— (i) the reason for the arrest”
Article 49: Rights of arrested persons
Summaries and answers are a plain-English guide written by Iam254, not legal advice. The official text is what counts. Official text: Constitution of Kenya, 2010, Kenya Law (National Council for Law Reporting), legislation as at 3 September 2010. It has not been amended since.