In this story, a team of explorers and scientists on Mars encounter an alien base, in which there is a still-functional device, possibly for communication with gravitational wave oscillation.
Tension mounts as the superior claims to not believe such black holes even exist and gleefully teases the scientist's flustered attempts to explain such things.
During a heated argument with his superior, the scientist evidently turns off a containment field, releasing the black hole downward.
The hole drops right through the superior, fatally injuring him with tidal forces and an incredibly small 'tunnel' it creates through his entire body as it falls towards the center of the planet.
Also that any conviction in a trial would require convincing the jury that such a thing could exist, that one was inside the machine, that the scientist understood the controls, that it was foreseeable that the black hole would be released and would harm the man, and intended murder.