The holder may repossess goods sold under an agreement if: The buyer is in default in: The payment of any sum due under the agreement; The performance of any other condition which the agreement lawfully requires him to perform in order to obtain unencumbered title to the goods; or The performance of any promise the breach of which is expressly made a ground for repossessing the goods; or The goods were seized by a police department, bureau, or force. The holder may repossess goods only by: Legal process; or Self-help, without use of force. Nothing in this section authorizes a violation of criminal law. At least 10 days before he repossesses any goods, the holder may serve a written notice on the buyer of his intention to repossess the goods. The notice shall: State the default and any period at the end of which the goods will be repossessed; and Briefly state the rights of the buyer in case the goods are repossessed. The notice may be delivered to the buyer personally or sent to him at his last known address by registered or certified mail. Within five days after he repossesses the goods, the holder shall deliver to the buyer personally or send to him at his last known address by registered or certified mail, a written notice which briefly states: The right of the buyer to redeem the goods, and the amount payable for them; The rights of the buyer as to a resale, and his liability for a deficiency; and The exact location where the goods are stored and the address where any payment is to be made or notice delivered.