@CeCe Realistically, criminals can have cell phones, radios, or etc. like devices to communicate with one another. Just like how government have their own proprietary radio channels in-game to communicate, criminals too can also use other forms of communication to collaborate with one another.
For clarification, the only reason this warning was issued and will stand is exact reasoning Russtime provided further up on this thread. Please refrain from posting conspiracy statements on reports or appeals of any kind. If you yourself have questions regarding the rules in that way, you're advised to speak with a staff member in a private channel, or in-game during a sit.