Although, it's important to adhere to the law completely. SSTV communication can certainly be used, but having a direct conversation with the other party…
LK0056
An amateur radio operator heard what appeared to be deliberate interference being broadcast on a frequency reserved for amateur use, and then used the microphone to educate the sender about radio regulations. A comment on this practice should be:
A violation of the rule that "the communication objects of amateur radio stations should be limited to other amateur radio stations."
However, it's a bit disorganized and not recommended.
C should promote the publicity of regulations regarding seizing opportunities.
However, it is important to maintain a polite and patient attitude, and use appropriate language.
LK0247
Amateur radio communications are being interfered with by illegal or unidentified stations. The correct approach is:
Ignore A, gather relevant information and report to the radio management agency.
B informed the relevant authority about the radio management law and requested that they cease interfering with the transmissions.
Immediately report to the radio management agency about interference.
D Use a high-power signal to suppress it.
As a side note, some strict British-style operators would even avoid communicating with any radio station in areas where there was potential conflict, simply to ensure compliance with regulations (because they couldn't determine which authority had issued the other station's license).