 Therefore, a subjective test is to be applied – if the police officer honestly supposes he has reason to believe the required element, the court cannot go behind the officer's statement.However, "Ong Yew Teck" may no longer be good law in view of the Court of Appeal's more recent decision in "Kamal Jit Singh" (above).No person may be detained for enquiries for more than 24 hours unless such detention is authorized by a police officer of or above the rank of assistant superintendent, or for 48 hours in all.