Godan verb with 'ru' ending, Transitive verb
to manage; to control; to supervise; to oversee; to command
市は飲酒運転を非常に厳しく取り締まって、罰金を課している。The city is cracking down on drunk drivers and giving them fines. to crack down on; to keep under strict control; to enforce; to regulate
Also written 取締る【とりしまる】、取締まる【とりしまる】