"Oops, sent a funky signal with the wrong configuration, let's try again."
Or
"I messed up the modulation so the message is illegible."
Or
"I just found a funky NASA satellite that is no longer operational. Let me slap it with some messages and see if I get a return."
https://www.science.org/content/article/amateur-astronomer-d...
Or maybe you are an amateur radio astronomer. Built your own radio telescope.
The OP seemed to suggest that when you ban encryption, random people will randomly get in trouble, therefore banning encryption is a bad idea. But judges have common sense and law enforcement has limited resources (prioritization) therefore random people will probably not randomly get in trouble. Therefore strong encryption ban is very realistic and very easy to sell to the population, and not like the OP claimed something that will backfire. This is why his comment is naive. He likes encryption and doesn't want for it to be banned therefore he deludes himself with some alternative reality where doing something he doesn't like backfires and is reversed.
Strong encryption ban will not backfire.
Sometimes they are too old to even comprehend the technology.
Judges are always on the side of law enforcement, and whomever can purchase the more reputable legal firm. Judges have favorites, and biases.
Laws like this will immediately backfire. It won't hurt politicians initially. They get immunity. But it will allow the party in charge to cement their position through illicit use of encryption.
No encryption allowed for the opposing party! But us...
Extremely late edit : I would also point out that "random people" are easier to arrest than actual career criminals. Police here are extremely lazy and usually only go for the low hanging fruit. Some of these cases do get thrown out. But not all of them.
My country does not have free speech. It has some of the most stringent copy right laws in the world. It also has defamation laws that have been used to suppress truthful reports.
Police are allowed to hold you indefinitely with no justification. (Technically they are limited to 30days) They are allowed, and constantly refuse to allow you access to a legal representative.
They are allowed to force you to confess to a crime you never committed.
Politicians get away with corruption, and secure votes through the use of cults.
I know what it looks like when the current dominating party was created by a literal Class A Warcriminal from WW2.
These anti- encryption laws make life even worse. The last thing we have here is a semblance of privacy.
I do not want, or need 1st world countries such as Britain or Spain to give an example for my government to follow.