The drop to insertion would be quick and efficient, utilising orbital drop technology to bring Robbie to the surface of the planet. There would be more preparation if the being inside wasn't made of self repairing alloys, with nanobot filled tubing in case of permanent damage to the outer plates.
Robbie had uploaded three new modules, a scene construction module, which would allow him to reconstruct crime scenes in hologram form, to allow for more detailed views of the crime scene as evidence was added. There was also a new multi target sorting module, which allowed for facial recognition and feature sorting, as if it were a game of Guess Who. And finally, he had a new shield cycling module, which put the shield at a cycle rate which allowed him protection from most conventional weapons of older design, like those he would encounter in this town.
The drop was pretty noisy, and he entered the atmosphere at hypersonic speeds, causing several explosions to resound as the sonic booms occurred, before his pod his the floor, and a large shockwave shook the ground for about 3 miles around as the kinetic energy that would have crushed the pod under it's own weight was redirected back into the ground.
The townspeople had panicked, most hiding in their homes. Siorus' furthest structure would have heard the message which was transmitted across the town by specialised sound waves that were designed to only resonate in the ears of a living organism.
"Attention citizens of the town known as Siorus.
This is a warning to all citizens."
The pod containing Robbie began to shift, with rods and parts moving, as Robbie stepped out, armed to the teeth in plasma and energy weapons. When the pod had finished changing shape, an orb appeared round it, before another beam of shielding projected into the air, where it formed a dome around the town, stretching further than the farthest structure.
"A dangerous criminal is hidden among you.
Do not panic.
The shielding around town cannot be traversed.
Do not attempt to leave town.
A constant message will be played around the town to any who wish to enter warning them of the shield.
Please provide your co-operation to Robbie, our ground agent.
He has permission to kill those who present a threat to him.
He will kill the criminal upon discovery, and any who conspire to protect said criminal.
Do not resist Robbie, as we understand that your town relies on trade to provide the majority of food, and the shield has also cut off your communications outside of town.
This was a message from Gorgon Bounty Hunters.
Thank you for listening."
Robbie stepped through the shield, and began to speak.
"Do not be alarmed. Provided with full co-operation I calculate that I will be able to find the criminal in..." Robbie paused as the calculation finalised.
"6 weeks, 3 days." The news sounded good, but the town likely did not have enough food for that long without the outside world.
"It must be noted that the shield will remain active until the search is completed and the target is identified as dead." Robbie took a few steps forward before the sound of a gunshot resounded, coinciding with a loud metal clang as the bullet struck the metal of Robbie's outer plating.
"Hostile identified. Eliminating." The rifle was raised instantly, and a beam of energy appeared, vaporising the man who had shot at Robbie.
"Hostility will be met with death."