How did the fugitives slave act affect the Underground Railroad?

With the passage of the Fugitive Slave Act of 1850, assisting or helping hide fugitive slaves became a federal offense, making all Underground Railroad activity subject to six months in prison and a $1,000 fine. Escaping from slavery or helping someone to escape from slavery was a very difficult and dangerous task.

Explanation:

they usually pass federal laws

and sometimes in the elections of the president

they forced them to b sell their land