Amsterdam Mayor Halsema expressed significant surprise regarding the actions of street coaches on March 17, 2026, following the assault of Ja21 faction leader Kevin Kreuger. Kreuger reported being forced by these coaches to delete footage from his phone, which he had captured while intervening in an incident where a group of youths threw an ice cream at a woman on Osdorpplein. Kreuger sustained injuries, including hard kicks to his head, after confronting the youths. Halsema emphasized that Kreuger's filming aided the police investigation and stated her intention to discuss the street coaches' conduct, particularly their alleged demand to delete evidence, with them to understand their reasoning and clarify that such actions are unacceptable. The police are investigating the assault and have reportedly secured security camera footage.