The polarising ex-MP and talkback host was investigated after the alleged incident at Whanganui Hospital last year.
A source told the Herald on Sunday a nurse said she saw Laws smack one of his children. The father-of-five and his three youngest children were at the hospital to visit the children’s mother, Leonie Brookhammer, who was recovering from a stroke.
Police told the Herald on Sunday in January they were investigating, and this week police said the investigation into the 57-year-old had ended.
“A thorough investigation was carried out and the man has now been issued with a formal warning,” a spokeswoman said. “We encourage families and community members that if they have concerns … to report it to police confident in the knowledge that their complaint will be investigated.” Laws yesterday denied receiving a formal warning from the police.