Mobile phones and social media school rules: a DSL guide

A phone is one of the main ways online harm reaches a child. Contact from strangers, bullying, pressure to share images and blackmail all arrive through messages and apps. The United Nations Children's Fund (UNICEF) lists grooming, extortion and cyberbullying among the online risks to children.

Your phone rule decides when and where students can use those tools at school. It should sit inside your online safety policy and use the same route to your designated safeguarding lead (DSL) as every other concern.

Keeping Children Safe in Education (KCSIE) 2026 has a section on mobile phone policy. It says all schools in England should be phone-free by default, with any other approach an exception.

KCSIE binds schools in England only, so an international school sets its own rule. This guide shows how schools overseas use it. Host-country law still applies on your campus.

Most rules fall into four models. Pick one for each age group and write it in one sentence a student can repeat.

The Department for Education (DfE) in England expects pupils to have no access to phones in lessons, between lessons, at breaktimes and at lunch. Its examples include lockers and handing phones to staff at the start of the day. Older students may have limited use in set places, away from younger children.

Decide what counts as a phone. The DfE guidance covers smart devices that send notifications or record audio and video, so say how your rule treats smartwatches.

Then settle the practical points. Say where phones are stored, who is responsible if one is lost, and what happens when a parent needs a student urgently.

• No access all day: phones stay at home or are handed in on arrival.
• Phones away: phones stay switched off in bags, with a clear consequence if they come out.
• Set times and places: phones are allowed at lunch or in an older students' common room.
• Use for learning: phones are allowed in a lesson only when the teacher says so.

The United Nations Educational, Scientific and Cultural Organization (UNESCO) reports that many education systems have now introduced national phone bans. Check its latest figures before you quote them.

The same UNESCO work says limiting phone use may reduce classroom distraction. It also links social media use to wellbeing risks. It describes bans and does not show test scores or safeguarding results.

A school-day rule cannot reach evenings and weekends, when students use their own connections. The National Society for the Prevention of Cruelty to Children (NSPCC) advises that filters and bans are not enough alone. Open conversation at school and at home matters too.

Treat the rule as one tool. Judge it on what you can check in your own school, such as fewer phone incidents and students who still report worries. Do not promise parents that a ban will keep children safe.

Your school can set rules for school accounts, school networks and the school day. It cannot control a family's phone at home. Say that in your policy, then use teaching and reporting to cover the gap.

Most large platforms set a minimum age in their own terms, often 13. Some countries also set minimum ages in law, so ask a local lawyer before you tell parents what applies.

NSPCC Learning advises that school accounts should be authorised, supervised and privacy-controlled. It also advises getting consent from parents and students before posting identifiable images or information. Start your rules from these points.

• Name one adult who owns each school account and checks it every week.
• Post no student names beside photos, and check image consent first.
• Ask permission before photographing or filming anyone.
• Teach students what to do if a stranger contacts them or someone pressures them to share an image.

A rule with no exceptions will fail someone. Write the exceptions down before the rule starts, so every teacher applies them the same way.

Parents who need to reach a child during the day should call the school office, which passes on the message.

International schools have one more case. Boarders often have families in other time zones, so private calls may only be possible early or late. Agree calling times with families and tell the boarding staff.

The DfE guidance names medical needs, disability, caring duties and private family contact for boarders. It also says students should be able to use their phones to report an online issue, especially on residential trips.

• Medical needs, such as a phone that links to a glucose monitor.
• Students with special educational needs and disabilities (SEND) who use a device for support.
• Young carers who may need to be reachable by their family.
• Boarders who need private contact with their families.
• Trips and residentials, where travel safety and reporting both matter.

Staff need the same rule. The DfE guidance says staff should apply it consistently and should not use personal phones for personal reasons in front of students.

It allows exceptions such as setting homework, giving rewards or sanctions, and multi-factor authentication. Write your own list of exceptions.

KCSIE also says the staff code of conduct should cover acceptable use of technology, including mobile devices, and staff and student communication on social media. The guide to teacher and student messaging covers the details.

• Take photos and video of students only on school devices.
• Do not send or accept friend requests with current students.
• Message students only through school email and school platforms.
• Tell the DSL if a student contacts you on a personal account.
• Report a colleague's breach as a concern, even if it seems small.

A rule that students fear can push problems out of sight. A student who gets an upsetting message may stay quiet if the phone will be taken away. Tell students that reporting a worry is always welcome, even when the phone should not have been out.

Write a short ladder of responses, from a reminder to a call home. The DfE guidance allows confiscation and detention, and says sanctions should suit the student's age and any SEND.

Searching a phone needs care. The law on searching differs by country, so check with a local lawyer before staff look through a device. Staff should never view, copy or forward a nude image of a child.

When a breach looks like more than a breach, follow your child protection procedure and tell the DSL the same day. If a child is in immediate danger, call local emergency services. Give staff words to use.

• "Thank you for telling me. You are not in trouble for telling."
• "I will not look at the images. I need to tell our safeguarding lead so they can help."
• "Please do not send it or show it to anyone else. I will tell you what happens next."

Tell parents the reasons before the rule starts. The DfE guidance says schools should publish the policy, explain why, ask parents to back it at home and answer concerns quickly.

Send a one-page summary in the main languages of your families. Cover the rule, the reason, the exceptions, how to reach the school office and what the school cannot control. The guide on what to tell parents about safeguarding has more wording.

Here are four lines you can adapt.

• "From Monday, phones stay in lockers from arrival to home time. This protects lessons and breaks."
• "If you need to reach your child, call the school office. We will pass on your message."
• "The rule covers the school day only. Please talk with your child about the apps they use at home."
• "If your child tells you about something worrying online, please tell us. Telling is always welcome."

Review the rule at least once each academic year, and sooner after a serious incident. Ask students and parents what is working.

Give the board a short termly summary of phone-related concerns, without details that could identify a child. The Council of International Schools (CIS) lists online safety among the areas leaders should strengthen, so keep your review notes in one place.

Then test the rule with five questions.

• Can every student say the rule in one sentence?
• Do staff apply it the same way in every classroom?
• Do students still tell adults about online worries?
• Can parents read the rule in a language they speak at home?
• Does the DSL see phone-related concerns in the termly report?