cover latch 28 engages lug 35 to force counter clockwise rotation of member 61 until the spring biased lock arm 36 again nests in notch 69 whereat latch hook 63 again secures the cover 16 in the locked position in operation a would be authorized user places a finger or thumb on the exposed portion of the reader board 30 which scans the print and compares it to authorized fingerprint maps digitally stored in the memory of the reader board 30 if the user 39 s print matches a stored authorized print he or she is recognized as an authorized user and an impulse signal is sent to a normally de energized solenoid 34 once energized the cover is unlocked as explained above to decouple hook 63 from the cover latch 28 de energizing the solenoid returns control of the lock arm positioning to the inner spring s of the solenoid housing 35 which projects into engagement with member 61 upon closure of the cover 16 the lock member 61 is rotated against the urging of spring 64 to align notch 67 with the nose end of lock arm 36 which enters the notch 67 and provides relocking of cover 16 there are several available power sources for the finger print reader board 30 in the preferred embodiment described herein the power source is a rechargeable battery pack 42 housed in the slide mechanism 22 see fig4 a the base 12 may be directly energized and keep the rechargeable battery pack constantly charged solar cells can also be mounted on the.