Text message saying -

This is a message on behalf of all Australian policing agencies. The Social Research Centre will call you in the coming days to see if you can take part in an important study on safety and crime in your area. Reply '1' if you are 18+,'2' if you are under 18 or '3' to opt out.

Seems like fishing for age of recipient.

Text message saying -

This is a message on behalf of all Australian policing agencies. The Social Research Centre will call you in the coming days to see if you can take part in an important study on safety and crime in your area. Reply '1' if you are 18+,'2' if you are under 18 or '3' to opt out.

Received the same message as above. Possibly scam as policy makers won’t go after ordinary people like this

Fairly certain its spam. 1 2 or 3 probably signs you up to some cost thing

The Social Research Centre appear to act of behalf of their clients for research and survey purposes. The mobile number in question can be found on their website, advising this is one of the numbers they send text messages from.
https://www.srcentre.com.au/research-participants

Same text as above received on 13/7/2020
Text message saying -

This is a message on behalf of all Australian policing agencies. The Social Research Centre will call you in the coming days to see if you can take part in an important study on safety and crime in your area. Reply '1' if you are 18+,'2' if you are under 18 or '3' to opt out.

I've blocked number but guess they'll call from another number, will not answer questions unless they pay me $150 per 10 min intervals!

Text message saying -

This is a message on behalf of all Australian policing agencies. The Social Research Centre will call you in the coming days to see if you can take part in an important study on safety and crime in your area. Reply '1' if you are 18+,'2' if you are under 18 or '3' to opt out.

Australian policing agencies - not sure if spam?