Try this safety hack before taking your child to a crowded place

One police department in California has a simple, life-saving tip for parents and their children.

Police in Clovis, California, regularly share information with their Facebook followers with the hashtag #TipOfTheDay.

Last week, the department shared that a liquid Band-Aid and a marker could save children if they go missing in a busy location, according to The Huffington Post.

“Write your phone number on their wrist and cover it with liquid Band-Aid in case you get separated,” it said in the post. “Also, take a photo of them using your cellphone the morning of the event so you have their clothing, hair style and up-to-date photo.”

The post has over 16,000 shares and thousands of reactions.

“We posted this tip a few months ago and it was one of our most popular ever, so we decided to post again,” the department said.