The season seven episode of DS9 - Field of Fire - has a twist.
The killer is using a rifle that transports the bullet from the muzzle of the rifle - conserving the bullet's muzzle velocity and allowing the shooter to hit targets through bulkheads.
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Off the top of my head, I can think of at least two occasions where transporter technology is used to commit mundane crimes (e.g. as opposed to using them as a weapon of war or as a tool of espionage ) In Gambit Part 1 , we learn that a criminal gang have modified their phasers to activate a transporter on their ship.
They're using this technology to steal religious artefacts from archaeological dig sites as well as kidnapping Picard in a way that makes it look like he's dead.
In Ménage
à
Troi , a Ferenghi Daimon named Tog uses a transporter to kidnap Lwaxana Troi and Deanna Troi.
He then transports them out of their clothes.
At the very least this would be considered a form of sexual assault.
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Another DS9 example is from S05E11 , when the serial killer puts a remat detonator on one of his victims so she'd die horrifically when transported.
The remat detonator is a vicious weapon of sabotage that disrupts transporter rematerialization, causing a relatively slow and painful death that leaves the victim unrecognizable.
They're incredibly small devices that are easy to hide on someone without their knowing it and are allegedly popular with the Romulans
(I can definitely imagine the Tal'Shiar using this terrifying execution method).
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I'm not sure if you consider it a crime or simply an aggressive act between warring parties, but in VOY: Maneuvers the Kazon Nistrim use an illictly obtained transporter module to execute the leader of a rival sect by beaming him into space.
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In Data's Day , a transporter is used to mask the smuggling-out of a Romulan spy - a direct act of espionage that Picard and Data uncover in that very episode.
And more indirectly, in Devil's Due , Ardra uses transporter technology, along with many other space-faring technological tricks, to run a con on a devil-fearing planet and the Enterprise, which definitely counts as a crime.
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In The Undiscovered Country ( The Final Frontier ) film the transporter is used to perform a murder on the Klingon ship by going there.
The transport is not the arm, but it is used for a crime, which is what you asked.
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Captain Kirk uses the transporter in the course of committing most of his many violations of the Prime Directive.
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I'll add another, TOS 'The Menagerie'.
Spock apparently uses the transporter to take Captain Pike to the Enterprise.
I say apparently since there's no scene showing the actual transport.
However, it appears likely since the female office depicted below is monitoring Pike in his room.
We see her viewing him in the room, she briefly turns away and when she turns back to the viewer, Pike is gone.
Almost immediately after that, Mendez gets a communication that the Enterprise is warping out of orbit (implying Pike & Spock are now aboard).
While some time compression for sake of TV time is understandable, this all happens quickly and appears to make use of the transporter the only viable explanation.
Pike consistently told Spock 'No' (using the light on his chair) to the escapade.
Although Pike decided in the end to stay on Talos IV, the initial act of taking him to the Enterprise would constitute kidnapping since Pike was not willing to go.
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This is a direct example.
In one episode, Dr Beverly Crusher is helping treat illness in a remote lab, and becomes irreversibly sick due to damage caused by the pro-active immune systems of the experimental humans.
The transporter is used to reproduce her in the pre-ill state, based on the data held in the transporter memory from her last trip - the one to the lab.
The argument used to commit this serious breach of policy was that Dr Crusher was an essential crew member, and a replacement doctor was not possible.
However, because it is a fictional TV series, it isnt a "real" crime.
The Orwellian "1984" label "crimethink" could be applied.
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By their very nature,  Transporters  could be used for a variety of criminal means, such as:   distorting a person's appearance (for fraudulent or malicious acts)   or even destroying a person.     Is there any proof that a Transporter can be used to commit criminal acts? The answer can be from any Star Trek material.
Have any crimes been committed using a Transporter?
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<star-trek><star-trek-transporter>
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Transporter technology has been used in crimes including murder, execution, espionage and violations of the Prime Directive. There is proof a Transporter can be used to commit criminal acts in the following: S05E11, VOY: Maneuvers, Gambit Part q, Data’s Day and the Undiscovered Country. Moreover, Captain Kirk uses the Transporter to commit crimes against the Prime Detective. 
There is proof a Transporter can be used to commit criminal acts in the following: S05E11, VOY: Maneuvers, Gambit Part q, Data’s Day and the Undiscovered Country. Captain Kirk uses the Transporter to commit crimes against the Prime Detective. 