With Multiple Checklists for Jira, you can enforce that all checklist items are checked off before a status transition is allowed. This can be configured by Jira’s global administrator by editing the workflow.

You can access the Workflow settings from Jira or project settings.

Click the edit action at the workflow you want to modify. Then choose the transition you want to add a validator to and choose Validators.

Click Add validator, select All checklist items are checked, and click Add. 

The final step is to Publish Draft, without this step your workflow with added validator will not be active.

From now on, the transition will require that all checklists items are checked and an error message will be displayed informing that all items in the checklist need to be completed before this operation is possible.

If checklists are disabled in the project or in issue type, the validation will not be used.