Display custom posts in checkbox list

{// post_list  
case 'post_list_produktkrav': 

$items = get_posts( array (  
                                'post_type' => $field['post_type'],  
                                'posts_per_page' => -1  
)); 
foreach($items as $item) {
echo '<input type="checkbox" value="'.$item->ID.'" name="'.$field_related['id'].'[]" id="'.$item->ID.'"',$meta_related && in_array($item->ID, $meta_related) ? ' checked="checked"' : '',' />  
<label for="'.$item->ID.'">'.$item->post_title.'</label><br />';  
} // end foreach

break;}