In some very limited circumstances, police might be able to conduct a strip search at the time of an arrest – but not in every case of arrest. Police officers at the time of arrest can only perform a strip search if done for the purpose of discovering weapons in the person’s possession or evidence related to the reason for the arrest, and if police have reasonable and probable grounds to believe that a strip search is necessary in the specific circumstances.
Any strip search should be performed in private by an officer who is the same gender as you. Some police services may have special rules protecting individuals who are gender non-conforming.