The blast, which collapsed a block of flats on the Haut du Mont estate, claimed the lives of nine islanders shortly before 04:00 on Saturday 10 December.
A further 40 islanders from the surrounding flats were evacuated from their homes and have since been unable to return.
Several roads surrounding the explosion site have also remained closed since the tragedy last Saturday.
APPEAL ????
We are appealing for anyone who may have dash-cam or CCTV footage and were in the area of Pier Road on the morning of Saturday 10 December to come forward.
Please call 612612, or visit https://t.co/imwzaWam88.
Thank you. pic.twitter.com/7k4OLyZDqf
— States of Jersey Police (@JerseyPolice) December 16, 2022
Anyone who may have dash-cam or CCTV footage of the area of Pier Road on the morning of Saturday 10 December is being asked to call the Police on 612612.
They can also get in touch via the Police website here.