§ 103 Refusal to assist.

Here's a plain English summary of this rule:

If a police officer or judge asks you to help stop a riot and you refuse, you can be treated as if you were one of the rioters yourself. This means you could face the same criminal charges and punishment as the people actually causing the disturbance.

The idea behind this rule is that stopping riots sometimes takes more than just law enforcement. Officers may need extra help from bystanders to control a dangerous situation. If someone is asked to pitch in and instead walks away or refuses to help, the law treats that refusal seriously, almost like they chose to side with the rioters instead of helping stop the chaos.