laravel not redirecting after authorize fails

In my requests file in laravel 5.2, I'm setting a condition to check if user is authorized for a request or not.

Code

<?php
namespace App\Http\Requests;
use App\Http\Requests\Request;
use App\questions;
use Auth;
class answerAddRequest extends Request
{
    public function authorize()
    {
        if(questions::where('people_id',Auth::id())->count()==0)
            return true;
        else
        {
            return false;
            return redirect('dashboard');
        }
    }
    public function rules()
    {
        return [
            'answer'=>'required|min:3'
        ];
    }
}

If I do not add return false it executes and inserts in a new row, which shouldn't happen, but with the current code it says Forbidden which is correct but it doesn't redirect to my dashboard view. How can I make it to redirect to some other page if authorization fails?

via Chebli Mohamed