A House subcommittee chair announced on Thursday a broad investigation of the safety of online dating apps in the wake of “extremely troubling reports.” Among those cited in letters sent by the subcommittee to dating app companies is a lengthy recent investigation by Columbia Journalism Investigations and ProPublica.

Launched by Rep. Raja Krishnamoorthi, D-Ill., chairman of the Subcommittee on Economic and Consumer Policy of the House Committee on Oversight and Reform, the inquiry will focus on the use of dating sites among underage users, the sale or dissemination of users’ personal information and the presence of registered sex offenders on free dating sites. Krishnamoorthi added in a press release, “Protection from sexual predators should not be a luxury confined to paying customers.”

The CJI-ProPublica investigation revealed that Match Group — the industry’s behemoth with $1.7 billion in annual revenues and owner of 45 of the nation’s most popular dating platforms — screens for registered sex offenders on its flagship paid Match application but does not do so on its free apps, which include OkCupid, PlentyofFish and Tinder (the most popular of its offerings).

The House subcommittee released the letters it sent to executives at Match Group, Bumble, Grindr and The Meet Group, which request that they provide a broad assortment of information about their users and policies by Feb. 13. That includes “all policies and procedures referring or relating to whether you allow registered sex offenders or those convicted of violent crimes to use your product or service,” as well as how the companies determine whether a user is a registered sex offender and what actions they take when they reach such a conclusion. In addition, the subcommittee is requesting demographic information on the companies’ users and any communications online dating platforms have had with law enforcement agencies related to investigations involving their services.

ProPublica and CJI’s investigation into Match Group uncovered multiple examples of registered sex offenders using online dating platforms to reoffend and revealed a company that has often resisted legislative attempts to improve the safety of online dating while simultaneously successfully fending off lawsuits by individuals who were assaulted by people they met on the company’s dating sites.

In a statement released in response to the House investigation, Match Group said it doesn’t want bad actors or minors on its apps, adding that the company uses “every tool possible to keep them off.” The issue, the statement added, is a “broader Internet problem” and the company implored app stores to “do their part.” According to the statement, the stores “know exactly who is using these products” and should not allow minors and registered sex offenders to gain access to online dating applications.

Bumble, Grindr and The Meet Group did not immediately respond to requests for comment.

Last week, Match Group announced that its Tinder app will soon have a “panic button” that users can press if they’re afraid during a date. The button will send an alert, according to Match, which will trigger a dispatcher to check on the user and notify emergency personnel if necessary. The technology, which Match said it will eventually add to its other apps, comes through a partnership with and investment in a company called Noonlight.

We’re not done reporting on this issue, and we are working to better understand how online dating platforms respond to a user when they report sexual violence. We invite those affected and involved to lend their voices to our continued reporting by filling out our questionnaire here.