Staples, Minn., City Code ch. 103, art. IV § 103-99

(a) Purpose. The purpose of this section is to require security devices in certain buildings used for dwellings and certain non-dwelling structures accessory thereto, as a safety, burglary and theft prevention measure. Such security devices shall be installed in a professional manner and maintained operable and effective as installed.
(b) Dead bolt locks.
(1) Specifications. A dead bolt not less than three-eighths-inch in its least dimension, which penetrates into the strike plate not less than three-eighths-inch shall be deemed to meet the requirements of this section. Further dead bolt locks installed or replaced after the adoption of the ordinance from which this article is derived, shall have a bolt throw of at least ¾-inch and the strike plate shall be secured with steel screws at least 2½ inches in length or secured in a manner to provide equivalent security.
(2) Dead latch, bolt-type locks. Mortised dead latch, bolt-type locks, properly installed and maintained, when installed prior to the adoption of the ordinance from which this article is derived, may be deemed to provide the security required by this section; however, latch-type locks shall not be approved for new installations.
(3) To be openable without key. Except as hereinafter expressly permitted in this section, dead bolt locks, as required by this section, shall be of a type openable from the inside without the use of a key or any special knowledge or effort. A lock bolt moved by a skeleton-type key shall not be used to provide security for any rental unit.
(c) Locks required for roominghouses. All roominghouses existing now or hereafter constructed shall be provided with dead bolt locks on all entrance doors of each rooming unit. However, roominghouses having six or fewer rooming units and occupied by six or fewer roomers may provide the required security by dead bolt locks on all exterior doors of said roominghouse. Key locking shall be as required for other occupancies in this section.
(d) Locks required for dwellings. All dwellings, when let to another, shall be provided with dead bolt locks on all entrance doors of each dwelling unit, at least one of which must be capable of being locked from the exterior. The provisions of this paragraph become effective at the time of adoption of the ordinance from which this article is derived.
(e) Security for exterior garage doors. All exterior doors on garages provided for the use of the non-owner occupants of dwellings shall be equipped with such locks, bolts, security bars or other approved security devices which when in a closed, secured position will prevent the doors from being opened from the outside.
(f) Window security.
(1) Operable windows located in whole or in part within six feet above ground or a walking surface below that provides access to a dwelling shall be equipped with a locking device. All other windows and doors of dwellings let to another which are accessible to persons by means of porches, stairs, fire escapes, balconies, corridors, walkways, interior balconies, roofs, or other such possible accesses, shall be provided with an approved locking device which, when in the locked position, will prevent the window or door from being opened from without the dwelling unit or rooming unit.
(2) Windows and doors of bath and toilet rooms let in conjunction with the aforementioned units shall be provided with an approved locking device when such windows are deemed accessible by the standards set forth in this section.
(3) The window security required by this section shall be provided at the prime window or door and latching or locking devices on storm sash or screen frames will not be accepted as meeting the intent of this section.
(g) Responsibility for security. The owner, operator, or agent in charge of buildings covered by this section shall be responsible for compliance with the terms and provisions of this section.
(h) Keys required. The owner, operator, or agent in charge of dwellings let to another shall furnish the lessee with a key for the dead bolt lock or other lock required by this section.
(i) Easement agreements.
(1) No utility company may seek to enter a multi-unit dwelling in order to maintain, repair, replace, or remove any of its facilities without providing to the owner of the building not less than four hours' advance notice during normal business hours (8:00 a.m. to 5:00 p.m., Monday through Friday), except:
a. In case of emergency;
b. Meter reading, monitoring, adjustments, connecting, or reconnecting;
c. At the request of a tenant;
d. To protect the health and safety of tenants; or
e. When the activity does not require the company to access the building through the security doors.
(2) No utility company may require as a condition of its services that direct sales to the tenants of a multi-unit dwelling with exterior security doors be allowed except during limited periods of time negotiated with the owners of the building and upon adequate notice to the tenants so as not to compromise the security of the building.