这个是正确的
Can you tell me how I can get to the police station?
你能告诉我怎样到达警察局吗?
宾语从句是特殊疑问句：
疑问词+主语+谓语+sth
Can you tell me how I can get to the police station?
宾语从句诗一般疑问句：
if/whether+主语+谓语+sth(+or not)
Can you tell me if/whether I can get to the police station(or not)?