Do lawyers (legal workers) have the right to go to the police station to get the interrogation record for the plaintiff?

Generally speaking, lawyers cannot. After filing a case in the court, lawyers can get the notice of filing a case and the letter of introduction from some local law firms. In some local police stations, lawyers can't get it, so they can only apply to the court. If you feel troublesome, you can apply directly to the court for collection, but you should pay attention to the scope of collection. If you get it at once, the court will not be willing to make several trips to you.