The investigations are likely to result in more stringent procedures to prevent future deaths.

Anyone who comes to the islands must follow stringent procedures designed to prevent any stray species from entering and disrupting the ecosystem.

But he supported stringent new procedures to decide who can enter and remain in this country - changes that have had some harsh results.

The very stringent procedures require bids to be open by several staff from various departments to ensure fairness and impartiality.

Why would you have a more stringent procedure for buying an airline ticket than buying a gun?

The Republican conference report sets up a new, stringent procedure.

Interventions in areas where asbestos is present often have to follow stringent procedures.

And the fulfillment centers maintain that they have to adhere to stringent procedures to protect their business.

These casual security measures are a far cry from the stringent procedures used to monitor nuclear material.

Despite positive reports, there was also a quiet uneasiness about the police visit to the fair, which is said to have exceptionally stringent vetting procedures.