Laravel extend validator

Step1.php

<?php namespace Services\Validators;

class Step1 extends Validator{
	
	//rules for step1 validation
	public static $rules = array(
				'email'  => 'required',
				'firstname'  => 'required',
				'lastname'  => 'required',
				'system_key'  => 'required|systemcheck',		
		);	
	
	//custom message
	public static $messages = array(
				'systemcheck' => 'This ID has already been registered',
		);
}