Under Alexander III what behavior would result in an arrest as a political prisoner?

Under Alexander III of Russia, behaviors that could result in arrest as a political prisoner included engaging in revolutionary activities, participating in protests or strikes, and expressing dissent against the Tsarist regime. Even vague criticism of the government or involvement in liberal or socialist movements could lead to imprisonment. The regime maintained strict censorship and surveillance, making any perceived threat to the autocracy a reason for arrest. The use of secret police further intensified the crackdown on political dissent during this period.