To make a report never use a device of your own, your place of work or home, you can find the nearest public-use computer;
Download ToR Browser and install it. Once installed, launch ToR;
Using ToR, create a “disposable” e-mail account using your webmail service of choice (Gmail, ProtonMail, etc.); and
Using ToR -and only through your new, disposable account- send a message to containing all the information you wish to share, making sure to attach any evidence (pictures, documents, etc.)
Note: It is very important that you do not use ToR to access any other accounts related to you, and that you only use it to access the new disposable account.
Only by raising our voices together can we make a difference.