The professional criminal lives in a nice neighborhood. Chances of getting caught being less than 3% in Argentina, a smart criminal will make a lot of money. He has a nice house, sends the kids to a good school. Of course he does not steal from his neighbors, but any piece of intelligence he can gather he will use as long as it doesn’t compromise his cover. The people that live next to him consider him polite, he claims to be in the import/exports business, logistics, consulting or construction business. He may have a legit business as well.
The professional criminal has partners who are also like him. You wont see him hanging around bums or low lives wearing gang clothes.
He knows his tools of trade, he has good weapons and knows how to use them, he’s very determined. He wears armor when “working”, he has several cell phones but never talks directly about what he does, uses common language codes so that the true meaning of the conversation can go unnoticed to anyone recording it, or denied by his lawyer. Oh, he has one of the best criminal lawyers in town too. He has vehicles that are adequate for the job, fast and effective but common models easy to forget. If the job requires it he will get hold of armored vehicles too, either by contacts working in cash in transit companies, stealing them from diplomats or buying it himself. He also has safe houses where to keep the stolen goods or places to keep a kidnap victim. The selling of what he steals is done by a 3rd party broker. He knows other professional criminals as well and can sometimes associate with them for jobs that require more people or other skills.
He does intelligence work on his targets, and he practices how everything will go down with his partners, doing it again and again until they get it right. They go over the area and the escape routes several times.
Before the job, he will purge himself so as to not have any food waste left in his intestine, no food or water in his stomach either: This increases his chance of surviving a gun shot wound in the gut.
His clothes will depend on the job, when working around banks he might wear a suit, if not other casual yet comfortable clothes. Hair is usually cut short.
The professional criminal hides among the sheep. While good guys worry about other things, he’s exclusively focused on stealing from them.